Efficient denitrification bioreactor

The utility model discloses an efficient denitrification bioreactor which comprises a first box body, the top of the inner wall of the first box body is fixedly connected with a first purification box body, the center of the inner wall of the first purification box body is rotatably connected with a stirring hollow pipe, and one side of the top of the first box body is provided with an aerator; the center of the top of the first box body is fixedly connected with a rotary air-entrapping device corresponding to the aeration machine, the top of the rotary air-entrapping device is provided with a motor corresponding to the stirring hollow pipe, and the two sides of the outer wall of the stirring hollow pipe are fixedly connected with a plurality of aeration pipes and dispersion plates respectively. The first box body is provided with the stirring hollow pipe, the aeration machine, the rotary air-entrapping device motor, the aeration pipe and the dispersion plate, so that the device can perform aeration while sti