Airtight two stirring negative pressure aeration sewage treatment plant

The utility model discloses an airtight two stirring negative pressure aeration sewage treatment plant, its seal holder upper portion support motor speed reducer, the lower part is fixed on the barrel top, and the negative pressure air inlet communicates with each other with gaseous UNICOM sleeve pipe, the barrel top sets up the gas outlet, and the barrel middle part sets up the liquid outlet, and the lower extreme and the lower extreme head of barrel are connected, and the bottom of lower extreme head sets up the inlet, link one -level turbulent mixing oar and second grade gas distribution stirring rake under the motor reducer even on the transmission (mixing) shaft, transmission (mixing) shaft, on the motor reducer was fixed in the sleeve pipe upper end in gaseous UNICOM, gaseous UNICOM sleeve pipe lower extreme linked to each other with stirring gas distribution cover, barrel inside sets up turbulent board, gaseous UNICOM sleeve pipe is the hollow tube, and there is the transmission (mixing) shaft inside, and transmission (mixing) shaft top is equipped with the negative pressure air inlet. The utility model provides a problem of traditional aeration head or aeration casing cap stopper, guarantee gaseous and sewage intensive mixing, the treatment effeciency is higher.