Sewage treatment agent mixing device for sewage treatment

The utility model discloses a sewage treatment agent mixing device for sewage treatment, which is characterized in that a mixing and stirring structure is fixedly assembled in the middle of an inner cavity of a mixing tank, an upper side water supply structure is fixedly assembled on the upper surface of the mixing tank, and a lower side water supply structure is fixedly assembled at the lower end of the outer wall of the mixing tank; water and a sewage treatment agent in the mixing tank are uniformly mixed through the mixing and stirring structure, water is supplied into the cavity stirring blades through the upper water supply structure, water flow is sprayed out from the aeration through holes, and uniform mixing of the water and the sewage treatment agent is promoted in an aeration mode; aeration is conducted on the bottom face of the inner cavity of the mixing tank through the lower side water supply structure, chemicals are prevented from precipitating on the bottom face of the inner cavity of the mixin