The invention discloses an 
air cushion belt type conveyor sweeper. A high-pressure 
centrifugal fan is connected with an air distributing box through a 
flange and bolts, assembling holes allowing two transition air pipes to penetrate are formed in the side wall of a hopper, close to the air distributing box, at the head of a conveyor, one ends of the two transition air pipes penetrate into the assembling holes and are welded to special-shaped flanges, and the other ends of the two transition air pipes are welded to the air distributing box. One ends of an upper strong wind 
pipe and a lower strong wind 
pipe are welded on the special-shaped flanges, the special-shaped flanges are connected through bolts, the other ends of the upper strong wind 
pipe and the lower strong wind pipes are welded to another special-shaped 
flange, one end of a supporting pipe is welded to the corresponding special-shaped 
flange, and the special-shaped flanges are connected through bolts and welded to the side wall of a discharging hopper of the conveyor. A wind 
nozzle is arranged at the upper end of each of the upper strong wind pipe and the lower strong wind pipe, and the wind nozzles are spaced from a 
conveyor belt by a certain distance and form certain angles with the 
conveyor belt. The pneumatic sweeper involved in the technical scheme does not make contact with the 
conveyor belt, and dust and residual materials attached to the upper and lower belt surfaces of the conveyor belt are swept cleanly.