Multifunctional air disinfection machine based on photocatalyst

Four first light-emitting faces are arranged on a connecting base, the first light-emitting faces are connected end to end to form a lamp shell, a bulb is arranged in the lamp shell, a second light-emitting face is arranged on the lamp shell, each first light-emitting face comprises a diffusion plate, a light guide layer and a photocatalyst coating which are sequentially arranged, and the light guide layers are arranged on the diffusion plates. The photocatalyst coating faces the bulb; a plurality of first transparent baffles are arranged on the two sides of the front side face in the lamp shell, a plurality of second transparent baffles are arranged on the two sides of the rear side face in the lamp shell, the first transparent baffles and the second transparent baffles are arranged in a vertically staggered mode, a first L-shaped ventilation box is arranged on one side of the lower portion of the connecting base, and a second L-shaped ventilation box is arranged on one side of the lower portion of the conne