A smog purification apparatus that can be mounted on a motor vehicle, comprising a base plate (1), a gas intake apparatus (2), a first purification apparatus (3), an adhesion apparatus (4), a spraying apparatus (5), a discharging apparatus (6), an intake apparatus (7), and a second purification apparatus (8). Provided on the base plate (1) are a first support frame (11), a first support rod (12), a second support rod (13), a third support rod (14), a fourth support rod (15), a second support frame (16), and a third support frame (17). The gas intake apparatus (2) comprises a first gas intake pipe (21), a first fan (22), a second gas intake pipe (23), first bristles (24), a bent pipe (25), a fifth support rod (26), a sixth support rod (27), and a seventh support rod (28). The first purification apparatus (3) comprises a first purification frame (31), a first blocking column (32), a first vertical rod (33), a first filter (34), a first roller (35), second bristles (36), a second vertical rod (37), a fourth frame (38), and a first horizontal rod (39). The adhesion apparatus (4) comprises a first conduit (41), a first valve (42), a second conduit (43), an adhesion frame (44), a third vertical rod (45), a first oblique plate (46), a second horizontal rod (47), and an adhesion layer (48). The smog purification apparatus can be fixed on a motor vehicle and allows targeted purification for areas of severe smog, thus improving purification effects.