Micro-nano aeration oxygenation device

The utility model relates to the technical field, and provides a micro-nano aeration oxygenation device which comprises a shell, a micro-atomization device fixed at the top of the shell and a spray head fixed at the bottom of the micro-atomization device, a water inlet is formed in the outer side of the top of the micro-atomization device, and an air guide pipe is fixed on one side of the bottom of the shell; the air receiving plate rotates in the air cavity under the action of air flow introduced into the air guide pipe, then the pipe shaft is driven to drive the air distribution disc and the air spraying heads on the rotating ring to rotate in the circumferential direction, meanwhile, the air spraying heads can swing up and down in a reciprocating mode in the process of rotating around the cone, the air spraying positions of the air spraying heads are continuously changed, and the air spraying range of the air spraying heads is enlarged; according to the micro-nano water mist spraying device, gas sprayed ou