Double-layer belt-type conveyor

A double-layer belt-type conveyor comprises conveying belts, carrier rollers used for supporting the conveying belts and a conveying belt support. The conveying belts comprise an upper layer conveying belt and a lower layer conveying belt. The conveying belt support comprises a plurality of large H-shaped frames arranged along the moving direction of the conveying belts at intervals and small H-shaped frames fixed at two sides of each large H-shaped frame. According to the double-layer belt-type conveyor, raw coal and coal gangue are conveyed through the upper layer conveying belt and the lower layer conveying belt, and the effects of precise conveying, resource conservation, labor reduction and efficiency improvement are achieved. Due to the small H-shaped frames are arranged at two sides of each large H-shaped frame, the effect that one support bears conveying of the double-layer belts is achieved. The ground and space underground are saved, and production cost is reduced.