Automatic conveyor coal cleaning device and conveyor

The utility model discloses an automatic coal cleaning device of a conveyor and the conveyor. The automatic coal clearing device of the conveyor comprises a hydraulic cylinder arranged on the tail ofthe conveyor and a coal clearing part making contact with a water return groove in the tail of the conveyor, the hydraulic cylinder comprises a telescopic rod connected with the coal clearing part, and the hydraulic cylinder drives the coal clearing part to move in the telescopic direction of the telescopic rod. According to the coal clearing device, one end of the coal clearing part is connectedwith the telescopic rod, the other end of the coal clearing part makes contact with the water return groove in the conveyor tail, the coal clearing part is driven by the hydraulic cylinder to move inthe telescopic direction of the telescopic rod, coal briquettes and gangue on the water return groove are automatically cleared away, the water return groove is prevented from being blocked, manual clearing is not needed, and c