In a Vortex Mix Composite Gas Treatment System, granular air pollutants and malodorous substances are guided into the inflow tube and the guide vane by the wind pressure of an inflow blower without using any separate washing spray or packing facility, and are sprayed through a high speed spray nozzle, when the pollutants are removed by scraping them with deodorizing detergent and vortex mix and by separating and removing the residual fine droplets from the streamlined infringement plate and the gas/liquid separating plate.