Dustproof cover with cleaning function for numerical control machine tool

The invention discloses a numerically-controlled machine tool dust cover with a cleaning function. A dust-proof protection plate is hinged to the left end face of a supporting plate on a cover body. A cleaning solution feeding device is arranged on the upper end face of the cover body upper supporting plate; the cleaning device comprises a cleaning unit; the cleaning unit comprises a cleaning base movably arranged on the inner side end face of the dustproof protection plate. An inclined surface is formed at the left upper end of the cleaning seat and is in contact with the inner side end surface of the dustproof protection plate; a left-right telescopic groove is formed in the left end face of the cleaning base. A liquid inlet hole with an upper opening and a lower opening is formed in the upper side wall of the left-right telescopic groove; a left-right moving plate is arranged in the left-right telescopic groove in a left-right moving mode. A cleaning sponge is fixed to the left end face of the left-right m