To provide an air discharge valve for a clothing compressing-and-storing bag which smoothly discharges air from the compressing-and-storing bag and effectively prevents the entry of external air into the bag due to air-tightness, thus improving the efficiency of use, efficiently preventing the entry of moisture or mold into the bag, and enabling convenient storage of the bag by hanging it as one hangs a hanger.

A body 10 and a cover 20 of an air discharge valve are mounted to the upper and lower portions of a vacuum storage bag, and a lever 40 is inserted into an internal space and moved up and down to be in close contact with a packing 50 installed between the body 10 and the cover 20, thus opening or closing an air passage, wherein the packing 50 is horizontally and vertically close contact with a vertical contact groove 45 formed in the lower portion of the lever 40.