Method and device for recovering acidic gas (hydrogen sulfide) from top of wastewater stripping tower

The invention discloses a method and device for recovering acidic gas (hydrogen sulfide) from the top of a wastewater stripping tower, and provides a method for recovering acidic gas (hydrogen sulfide) from the top of a wastewater stripping tower. The method comprises the following steps: introducing the acidic gas, which is discharged from the top of a wastewater stripping tower, and a heated strong alkaline adsorption solution into a one-stage or multi-stage swirl jet adsorber at the same time; then discharging the adsorption solution, which has absorbed the acidic gas (hydrogen sulfide), in the one-stage or multi-stage swirl jet adsorber into a circulation liquid groove, heating the adsorption solution by the coil pipe of the circulation liquid groove, delivering the adsorption solution to a desorption and regeneration integral device by a solution circulating pump; in the desorption and regeneration integral device, oxidizing the desorbed simple substance sulfur in the presence of a metal ion catalyst, an