The utility model relates to a composite atomized water type purifier for smoke and dust, comprising a first purifying chamber, a second purifying chamber, an induced draft fan, a settling basin and a circulating pipeline. A gas inlet pipe is arranged in the first purifying chamber, and a water tank is arranged on the bottom part of the first purifying chamber. After smoke, dust and gas pass through the first purifying chamber, the smoke, the dust and the gas enter into the second purifying chamber by the induced draft fan. The lower part of the second purifying chamber is provided with the water tank, the front part is provided with an atomized plate, and the upper part is provided with a gas and water separating plate. The smoke, the dust and the gas are jetted into the water tank in the second purifying chamber by the induced draft fan at a high speed, are atomized by the atomized plate to form rotational flow, and pass through the gas and water separating plate to cause the water and the gas to separate. The harmful gas is absorbed, and the water with the dust and sludge is settled by the circulating pipeline in the settling basin. The dusting efficiency of the device is high.