Photocatalytic flue gas treatment device

The utility model discloses a photocatalytic flue gas treatment device, which comprises a shell, a first-layer shell and a second-layer shell, the shell consists of a first-layer shell arranged on theinner side and a second-layer shell arranged on the outer side, the first-layer shell is made of a light-transmitting material, and a mounting fixing ring is arranged on the shell and is used for mounting the shell in a flue; the plurality of UV lamp tubes are arranged between the first-layer shell and the second-layer shell and are connected with the power supply through UV lamp tube wires; an adsorption and photocatalytic reaction unit which is composed of a silica gel sheet and is of a latticed structure is installed in the first shell, and a photocatalyst with adsorption and photocatalysis dual effects is loaded on the surface of the silica gel sheet. The device has the beneficial effects that when flue gas passes through the device, under the irradiation of the UV lamp tube, the photocatalyst catalyzes and o