Aeration sewage purification device for water environment restoration

The invention provides an aeration and sewage purification device for water environment restoration. The aeration and sewage purification device comprises a floating body and an upper bracket arranged at the top of the floating body, a through hole is formed in the middle of the floating body, a fixing ring and a driving device are arranged on the upper support, a rotating cylinder is rotationally arranged in the fixing ring, the bottom end of the rotating cylinder penetrates through the through hole and extends towards the lower support, and the driving device is used for controlling rotation of the rotating cylinder. The outer wall of the rotary cylinder is slidably sleeved with a driven rotary ring, a plurality of aeration spray pipes are arranged on the driven rotary ring, one end of each aeration spray pipe is hinged to the driven rotary ring, the aeration spray pipes are connected with the rotary cylinder through connecting rods, the two ends of the connecting rods are hinged to the aeration spray pipes