Sewage dosing mixer

The utility model discloses a sewage dosing mixer, and belongs to the field of chemical equipment. The sewage dosing mixer comprises a water conveying pipeline used for conveying sewage, a water inlet and a water outlet are formed in the two ends of the water conveying pipeline respectively, and the water conveying pipeline is provided with at least one treating agent adding opening. The mixer further comprises a fixed paddle arranged in the water conveying pipeline, and the fixed paddle comprises a plurality of blades; the blades are arranged in the water conveying pipeline in a staggered manner, are not parallel to the flowing direction of sewage, and are provided with at least one elliptical hole. Oval holes are formed in the blades located in the water conveying pipeline and used for sewage to pass through, more vortexes can be formed, turbulent flow in the mixing process of the agent and the sewage is increased, the mixing effect is improved, and the coagulation GT value is increased. 本实用新型公开了一种污水加药混合器，属