Coal washer

The invention discloses a coal washer. The coal washer consists of a cinder mill, a feed hopper, a stock bin, a motor, a water channel and a screw discharging device, wherein the discharge opening of the cinder mill is connected with the feed hopper by a conveyor belt; the stock bin is arranged below the feed hopper; a cavity is formed in the middle of the stock bin, a steel wire gauze is arranged in the cavity in a matched manner, a baffle is arranged at the end part of the stock bin, and two discharge openings are vertically formed at two sides of the baffle; the tapered water channel is arranged at the lower part of the cavity and communicated with a water storage tank; and the water storage tank is sealed by a movable leather bag, and the leather bag is driven by the motor to move up and down. According to the coal washer, water in the water storage tank and the water channel is driven by extrusion of the leather bag to wash coal and separate coal from stones. The coal washer is simple in structure and co