Ventilation device for mobile toilet

The utility model relates to the technical field of mobile toilet ventilation, in particular to a mobile toilet ventilation device. According to the technical scheme, the device comprises an exhaust pipe, a guide pipe and a filter cover, an air draft motor is fixedly installed on the lower portion of the interior of the exhaust pipe through a motor frame, an air draft fan is fixedly installed at the output end of the air draft motor, an air draft cover is fixedly installed at the bottom of the exhaust pipe, and a fixing rod is installed on the outer side of the top of the air draft cover in a threaded mode; the outer wall of the fixing rod is sleeved with a fixing plate, and a cushioning spring is fixedly installed outside the fixing rod at the top of the fixing plate. Through combination of various structures, a worker can conveniently and rapidly replace the activated carbon screen plate in the later period, the convenience of the worker in the process of replacing the activated carbon screen plate is impro