Gas neutralization device

A gas neutralization device comprises an alkali liquor storage tank, a gas supply pipeline, a pressurization exhaust mechanism and a gas return pipeline, a liquid containing space and an exhaust space which are communicated with each other are arranged in the alkali liquor storage tank, the liquid containing space is used for containing alkali liquor, and the gas supply pipeline is communicated to the liquid containing space and can convey strong acid gas into the liquid containing space. The gas return pipeline is communicated to the exhaust space and can convey gas in the exhaust space out of the alkali liquor storage tank, and a pressurizing exhaust mechanism is arranged on the gas return pipeline. The alkali liquor storage tank is internally provided with the liquor containing space and the exhaust space which are communicated with each other, so that when equipment runs, strong acid waste gas can be continuously and circularly neutralized, the whole neutralization process is completed in the space of the