Clean coal impurity removal device

The invention relates to a clean coal impurity removal device, and belongs to the technical field of coal production. Comprising a chute and a movable box plate, the upper portion of the chute is a feeding area, the bottom of the chute is a discharging port, an impurity removing sieve capable of rotating from a horizontal state to a vertical state or rotating from the vertical state to the horizontal state is arranged in the chute, an impurity discharging port is formed in the side wall of the upper portion of the chute, and the movable box plate is installed on the impurity discharging port. The movable box plate is installed on the chute through the overturning driving shaft, the overturning driving shaft drives the movable box plate to open or close an impurity discharging opening of the chute, the first side edge of the impurity removing sieve is fixedly connected with the overturning driving shaft, and the overturning driving shaft is rotationally connected with a shaft sleeve on the chute. And an overtu