The utility model discloses a drainage and water seal arrangement at bottom of tower of shaft furnace gas washing ware, including decide the neck venturi tube and with decide the hollow scrubbing tower that the neck venturi tube is connected, the bottom of hollow scrubbing tower is equipped with at the bottom of the tower of toper form, upper end at the bottom of the tower is equipped with first drainage hole, and first drainage hole is connected with a U type water seal of U -shaped form, and a U type water seal is first exhaust exhaust stack and the connection of second exhaust exhaust stack respectively, the top and the first drain pipe intercommunication of a U type water seal, lower extreme at the bottom of the tower is equipped with the second outlet, and the second outlet is connected with the 2nd U type water seal of U -shaped form, is equipped with third exhaust exhaust stack in the 2nd U type water seal, the top and the second drain pipe intercommunication of the 2nd U type water seal. The utility model discloses a drainage and water seal arrangement at bottom of tower of shaft furnace gas washing ware, tertiary outlet sets up the mode, and the different dust concentration's that discharge respectively gas washing water has solved effectively that export of gas washing wetting system and pipeline are easy the long -pending scheduling problem that becomes silted up, blocks up to appear.