The utility model discloses an automatic general stagnant water valve of exhaust formula, including disk seat (2), valve body, case (10), valve gap (7), locate to be equipped with interior breach (20) on the inner wall of valve gap and at the end of its import, the valve body includes external valve body (5) and interior valve body (6), and this external valve body's one end and valve gap meet, its other end meets with the disk seat including, on the valve body and be equipped with valve block (8) and valve block spring (9) in the interior breach department of being close to the valve gap, including have between the valve body that is equipped with bleeder vent (15) on the valve body including, and the valve block with the communicating gap of this bleeder vent (14). The utility model discloses not only can prevent washing liquid backward flow, still can with the pump chamber that washs the pump to connecting the inside air escape emptying of this general this section pipeline of stagnant water valve, stop completely to fill up and open but unable problem of carrying the washing liquid of scrubber behind the washing liquid. Still having solved and can not having pushed the problem of case because of liquid open to the reaction force of case, the commonality is very extensive.