It happened on the B3081 near Verwood - he had to be cut free by firefighters.
Refuse Lorry Catches Light After BBQ Binned
People are being warned not to throw away still-hot barbecues - after rubbish in a bin lorry caught fire in Poole.
Thousands of visitors have been flocking to Poole's beaches during the heatwave - but they've been leaving tons of rubbish.
The council's asking people to make sure they take their litter with them when they leave the beach.
Many people are also having beach BBQs with friends, but over the weekend, the inside of one of Poole's refuse vehicles caught fire due to a barbecue being binned while it was still alight.
The council's appealing to people not to throw away BBQs which are still hot.
Cllr Xena Dion, Cabinet Portfolio Holder for the Environment, Borough of Poole, said:
"Our beaches are fantastic and everyone in Poole is very proud of them.
"When the sun is shining there is no place better to be than with friends and family, but it is really important that everyone does their bit to keep our beaches clean and help maintain the Blue Flag status we all work so hard to achieve.
"I would ask people to please throw all rubbish in the bins at the end of the day rather than just walk away and leave it on the sand.
"Aside from the fact that litter is an eyesore on our beaches and unpleasant for other people, if left, it gets swept out to sea creating hazards for our very important sealife."
Violent crime was up 37% in the last year. Police say it's mainly due to a change in how offences are recorded.
Anne-Marie Ellement took her own life after claiming she'd been raped by two colleagues.
48 Zany Zebras sculptures were sold off to raise money for Marwell Zoo.
Recently Played Tracks
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
What's happening on the roads where you are?
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.
Find out more about some of the companies advertising on Heart.
Get some great ideas on how to advertise your business on radio, online and on mobile.