Turntable aerator

The utility model discloses a turntable aerator, which belongs to the technical field of sewage treatment and comprises a support column, the support column is rotatably connected to two mounting racks through two bearing parts, one end of the support column is provided with a second bevel gear, the second bevel gear is meshed with a first bevel gear, and the other end of the support column is provided with a second bevel gear. The first bevel gear is connected with one end of the reciprocating motion assembly, the reciprocating motion assembly is installed outside the cylinder, and the cylinder is arranged outside the linear bearing. According to the rotary disc aeration machine, by arranging the reciprocating motion assembly, the cylinder and the linear bearing, during aeration, the cylinder is controlled to move through the reciprocating motion assembly, so that the cylinder can drive the linear bearing to reciprocate left and right outside the supporting column, the aeration disc reciprocates left and rig