Spiral composite gas anchor

The utility model discloses a spiral type composite gas anchor which comprises a gas anchor body, an upper connector is arranged on the gas anchor body, micropores are formed in the side face of the upper connector, a sealing sleeve is connected with an inner cavity of the upper connector in a clamped mode, a central pipe is arranged below the sealing sleeve, and the central pipe is connected with the upper connector in a clamped mode. The upper end face of the central pipe is in tight press fit with the upper end face of an inner cavity of the sealing sleeve, a spiral body is arranged on the outer side of the central pipe, a plug is arranged at the bottom end of the central pipe, and the lower end of the upper connector is connected with an outer sleeve. The gas anchor has the advantages that the section space of a shaft can be utilized to the maximum extent, the design space of the gas anchor is large, the spiral body and the flow dividing sleeve are designed, the effects of spiral centrifugal separation an