Anti-blocking sealing vehicle of environment-friendly discharging vehicle

The utility model discloses an anti-blocking sealing vehicle of an environment-friendly discharging vehicle, which belongs to the field of steel mill equipment and comprises a sealing vehicle, guide rollers for a cover bin belt to penetrate through are mounted on the lower portions of the outer walls of a left side plate and a right side plate of the sealing vehicle, and the upper ends of the left side plate and the right side plate of the sealing vehicle are movably mounted between a front side plate and a rear side plate. The inner wall of the left side plate and the inner wall of the right side plate are respectively provided with a lock catch piece, the inner wall of the front side plate and the inner wall of the rear side plate are provided with locking pieces matched with the corresponding lock catch pieces, the lock catch pieces are buckled with the locking pieces when the sealing vehicle is idle or normally works, when the sealing vehicle encounters resistance during advancing, the lock catch pieces a