Tail gas purification device for hydrochloric acid production

The utility model belongs to the technical field of tail gas purification, and particularly relates to a tail gas purification device for hydrochloric acid production, which solves the problems of low efficiency and incomplete reaction in the prior art, and comprises support legs which are symmetrically arranged, and the tops of the two support legs are jointly fixed with a purification box with a cavity structure through screws; a gas guide pipe, an exhaust pipe and a liquid adding pipe are arranged on the purification box, a shell is slidably installed in the purification box, an opening is formed in the top of the shell, the cover plate, the shell, a lifting adjusting assembly and other structures are arranged, the opening is formed in the top of the shell, the shell is slidably installed, and the cover plate is adopted to be opened and closed with the shell, so that the purification box is convenient to use. When the alkali liquor is injected, the opening of the shell is opened, the alkali liquor can quic