Transport channel closing device of anti-countercurrent device crossing belt conveyor

The invention discloses a transport channel closing device of an anti-countercurrent device crossing a belt conveyor. The transport channel closing device comprises a windshield wall and the anti-countercurrent device crossing the belt conveyor, wherein the anti-countercurrent device crossing the belt conveyor is mounted on the windshield wall. An air cylinder is arranged on the oblique upper portion of the end, facing the excavating face, of the anti-countercurrent device crossing the belt conveyor; a rotating arm is mounted on the upper portion of the end, facing the excavating working face,of the anti-countercurrent device crossing the belt conveyor through a vertical frame; the middle of the rotating arm is hinged to a support; and one end of the rotating arm is hinged to a piston rodof the air cylinder, and an outburst-preventing cover plate is fixed to the other end of the rotating arm. Thus, provided is the transport channel closing device of the anti-countercurrent device crossing the belt conveyor, w