Exhaust-shoe one-way valve

The utility model discloses an exhaust-shoe one-way valve, which comprises a one-way valve body, wherein the one-way valve body is integrally molded, the one-way valve body comprises a cylindrical main body, a conduit and a clamping disk which are sequentially connected, a one-way exhaust control device is arranged in the main body, the inner-side end of the main body is provided with a gas hole which is jointed with a gasbag in an exhaust shoe, the diameter of the main body is greater than that of the conduit and is smaller than that of the clamping disk, reverse teeth are annularly distributed at one end, close to the conduit, of the main body, a metal filtering net covers the end surface of the clamping disk, a metal covered edge is arranged on the outer-side surface of the clamping disk, and the edge of the metal filtering net is wrapped by the metal covered edge. The one-way valve is more conveniently and firmly installed on the exhaust shoe, and the gas of the one-way valve can be filtered to avoid the blockage of an exhaust passage.