Device capable of preventing blanking hopper from being blocked

The utility model relates to the technical field of anti-blocking, in particular to a device capable of preventing a blanking hopper from being blocked, which comprises a feed hopper, a discharge port, a driving rotating wheel, a driven rotating wheel, a conveying belt and a conveying trough, and the conveying belt is wound on the outer sides of the driving rotating wheel and the driven rotating wheel. The feeding device has the advantages that when the feeding device is used, the rotating motor works to drive the first gear and the second gear to rotate, so that the sliding magnetic block moves on the execution screw rod, the size of a discharging opening of the feeding hopper can be changed, the position of the sliding magnetic block can be fixed by arranging an electrified magnetic plate, and the feeding device is convenient to use. By arranging the driving rotating wheel, the conveying belt and the driven rotating wheel, the materials are continuously driven forwards by the conveying belt to fall down thr