Industrial waste gas pressurization closed water-soluble air floatation treatment device

The utility model relates to an industrial waste gas pressurization closed water-soluble air floatation treatment device which belongs to the field of gas-liquid mixing and solid-liquid separation waste gas and sewage treatment. The device is characterized in that industrial waste gas is adopted as a gas source of air flotation treatment, a sewage air flotation treatment facility which is commissioned is utilized, and only a small amount of equipment is added and transformed, so that pollutants in waste gas can be transferred into water for purifying treatment,. The device comprises an air pump, a gas storage tank, a solenoid valve, a check valve, a water soluble gas tank, an intake spray pipe, a water inflow nozzle, in-tank filling materials, a water-level controller, an absorption liquid tank, a gas and water releaser and an air flotation pool, wherein all the devices are connected with one another through pipelines; and the intake spray pipe, the water inflow nozzle, the filling materials and the water-lev