I'm thinking, always a dangerous thing for me to do, some kind of setup similar to what's been mentioned. Any kind of fan, inline kitchen exhaust, duct booster, etc. that moves a little more air than your tractor does at idle. A simple calculation of engine displacement times RPM divided by 2 will tell you how much the air the engine is moving.
At idle, the exhaust doesn't get real hot, if you have a 2" exhaust pipe dumping into a 4" dryer vent pipe, it won't be as hot as the coming from a dryer considering you'll be pulling some cold in as well.
Route it through a wall away from the door and any house windows.