Have you replace the fuse yet and re tried it?
If so did the new fuse blow straight away?
Ok more then likely you are looking at a heater fault here. As its these which usually causes it to blow fuse.
What you need to do is remove the buldge cover on the back and there you will see the heater.
It will have a white plastic wiring block going into the panel.
You need to pull this out by press the small tabs in each side were its in the back panel and it will come out.
Then disconnect the wires on there and replace the fuse and plug the dryer in.
If it doesn't blow the fuse then the heater is faulty and will need to be replaced.
Then that should cure it. But make sure you do replace with a 13 amp fuse as anything lower like a 3 or 5 amp will blow.
If you need anymore info just get back to me.