Flue gas purification module and flue gas treatment device

The invention relates to a flue gas purification module and a flue gas treatment device. The flue gas treatment device comprises the flue gas purification module, and the flue gas purification module comprises a containing part which has a flue gas inlet and a flue gas outlet; a purification core body which is arranged in the purification core body in the containing part and located between the flue gas inlet and the flue gas outlet, wherein the purification core body comprises a breathable carrier and a composite removal agent attached to the breathable carrier, and the composite removal agent can remove mercury contained in the flue gas and meanwhile conduct desulfurization and/or denitration on the flue gas. The flue gas purification module not only can improve the flue gas desulfurization efficiency of the flue gas treatment device, but also can help the flue gas treatment device to remove mercury in the flue gas, so that the structure of the flue gas treatment device is simplified, and the size, the use