Alkali liquor spray tower for purifying electroplating acid gas

The utility model discloses an alkali liquor spray tower for purifying electroplating acid gas, belongs to the field of alkali liquor spray towers, and solves the problem that the existing alkali liquor spray tower is low in acid gas treatment efficiency. The device comprises a tower body, a conical cover is arranged in the tower body above an air inlet pipe, the center of the top of the conical cover is communicated with a communicating pipe, a spiral blade is arranged in the communicating pipe, the outer wall of the spiral blade is attached to the inner wall of the communicating pipe, an alkali liquor inlet pipe is arranged at the top of the tower body, and an alkali liquor outlet pipe is arranged at the bottom of the tower body. The bottom of the alkali liquor inlet pipe is connected with a spraying box through a bearing, a plurality of spraying holes are formed in the bottom of the spraying box, a driving motor is arranged at the bottom of the outer wall of the tower body, the output end of the driving mo