Coke oven gas hydrogen sulfide gas recovery method and device

The invention discloses a coke oven gas hydrogen sulfide gas recovery method and device, and provides a coke oven gas hydrogen sulfide gas recovery method. The method comprises the following steps: coke oven gas deoiled by the deoiling tank and a heated strongly alkaline adsorption solution simultaneously enter a one-stage or multistage swirl injection adsorber; the adsorption solution with adsorbed hydrogen sulfide in the one-stage or multistage swirl injection adsorber flows to a circulating solution tank, is heated by a circulating solution tank coil pipe, and is sent to a desorption-regeneration integrated device by a solution circulating pump; a metal ion catalyst is utilized to oxidize and desorb the simple substance sulfur in the desorption-regeneration integrated device, and the simple substance sulfur is separated and recovered; and polyphenol substances react with oxygen in the air to generate quinones, and the quinones oxidize and reactivate reduced metal ion catalyst in the desorption-regeneration