The invention relates to a dust-proof face mask. The dust-proof face mask comprises a safety helmet, a corrugated pipe I, a corrugated pipe II, a corrugated pipe III, a first row of air holes, a second row of air holes, a fixing belt, a visible transparent film, a hood, a cloak, fixing strips, quick connectors and sticking tapes, wherein the safety helmet is arranged in the hood, the cloak is arranged on the lower portion of the hood, the fixing belt is installed at the edge of the hood, and the corrugated pipe I is arranged around the lower portion of the safety helmet and fixedly arranged onthe lower portion of the safety helmet through the two fixing strips. The corrugated pipe II is connected with the corrugated pipe I through the quick connectors and fixedly arranged in the hood through the sticking tapes, the visible transparent film is arranged at the position, where the corrugated pipe II is fixed, of the hood, a round hole is formed in the middle of the corrugated pipe I, oneend of the corrugated pipe III is fixed to the round hole, and the first row of air holes and the second row of air holes are formed in the corrugated pipe II. The dust-proof face mask is suitable for operation in a narrow and small space containing dust, toxic gas, harmful gas and rare air.