The invention relates to the field of waste incineration, in particular to smoke treatment equipment for plastic combustion. The smoke treatment equipment for the plastic combustion comprises a combustion chamber, and further comprises a first fixing plate, a first motor, a first transmission shaft, a first fixing plate, a second fixing plate, a second motor, a second transmission shaft, a combustion device, a feeding body, a feeding channel, a dust removal opening, and a smoke exhaust device, wherein the first fixing plate is fixedly arranged behind the combustion chamber, the first motor isfixedly connected to the first fixing plate, the first transmission shaft is detachably connected to the first motor, the first fixing plate and the second fixing plate are fixedly arranged on the left side of the combustion chamber, the second motor is detachably connected to the upper surface of the second fixing plate, the second transmission shaft is detachably connected to the side surface ofthe second motor, the combustion device is arranged on the transmission shaft, the feeding body is fixedly arranged on the left side of the combustion chamber, the feeding channel is formed inside the feeding body, the dust removal opening is formed in the lower end of the front surface of the combustion chamber, and the smoke exhaust device is fixedly connected to the right side surface of the combustion chamber.