Vortex ejector

The invention discloses a vortex ejector, and relates to the technical field of low-pressure gas well natural gas extraction, the vortex ejector comprises a first shell, a second shell and a spiral link, a mixing chamber, a mixing chamber throat part and a diffusion chamber are sequentially formed in the inner space of the first shell, and a tail end opening of the diffusion chamber is communicated with the outside; the side wall of the end, away from the diffusion chamber, of the first shell communicates with a flange type low-pressure nozzle inlet. The second shell is fixedly arranged at the end, close to the low-pressure nozzle inlet, of the first shell in a penetrating mode, the side wall, located outside the first shell, of the second shell communicates with a flange type high-pressure nozzle inlet, and the end, located inside the first shell, of the second shell is connected with a high-pressure nozzle. The spiral link is wound on the outer wall of the second shell and arranged in the flowing direction