Impurity discharging device of carding machine

The utility model discloses an impurity discharging device of a carding machine, which comprises an impurity falling bin, the top end of the impurity falling bin is communicated with the bottom end of the carding machine, the bottom end of the impurity falling bin is closed, a blowpipe is arranged at one transverse end of the impurity falling bin, the blowpipe is communicated with an air compressor, and the air compressor is communicated with the carding machine. An air suction pipe is arranged at the other transverse end of the impurity falling bin, and the air suction pipe is communicated with a dust remover through an induced draft fan. The structure is optimized, after modification, impurities directly fall into the impurity falling bin, and the impurity falling amount is clear and visible. And the impurities are blown and raised inside and are sucked out by induced air, so that smooth impurity removal, no retention and no cotton accumulation are realized, normal impurity removal is achieved, and the cott