Aeration device for river sewage treatment

The utility model relates to the technical field of sewage treatment, and discloses an aeration device for river sewage treatment, which comprises a box body, the top of the box body is communicated with a water inlet pipe, the right side of the box body is provided with a motor box, and a reciprocating driving motor is fixed in the motor box. An output shaft of the reciprocating driving motor penetrates through the box body and is fixedly provided with a plurality of stirring blades, the interior of the box body is rotationally connected with a threaded rod, the right side of the threaded rod penetrates through the box body and is provided with a driven wheel, the output shaft of the reciprocating driving motor is fixedly provided with a driving wheel, and the surface of the driving wheel is sleeved with a belt; the other end of the belt is arranged on the surface of the driven wheel in a sleeving mode. The sewage treatment device disclosed by the utility model has the advantages that sewage and oxygen in ai