Self-settling aeration device for efficient aeration of rivers and lakes

The utility model discloses a self-sinking aeration device for efficient aeration of rivers and lakes, which comprises a shell and a safety valve, the shell is of a hollow double-layer structure, oneend of an outer bottle is provided with a hook, one end of an interlayer is connected with an inner bottle, the other end of the interlayer is connected with an outer detection device through a guidepipe, and the outer detection device is connected with an air outlet pipe through a guide pipe; a sealing device is installed at the top end of the shell, one end of the sealing device is connected with the reactor through an oxygen connecting pipe, a nanometer film is installed on the inner surface of the reactor, rubber rings are installed at the joint of the oxygen connecting pipe and the reactor and in the sealing device, and a safety valve is installed at one end of the sealing device. The bottom end of the safety valve is connected with an inner bottle of the shell through the small hole, the piston is installed