Smoke air purifier

The utility model is suitable for the smoke purification technology, and provides a smoke air purifier which comprises a main machine. The cigarette placing chamber is communicated with a recovery unit arranged at the top of the main machine; the locking assembly is located on the top of the cigarette containing chamber and slidably assembled to the recycling unit; wherein the recovery unit comprises a recovery screen plate mounted at the top of the cigarette placing chamber and a protective cover arranged on the outer side of the top of the main machine; the locking assembly is used for limiting cigarettes placed between the recovery screen plate and a cigarette placing pipe arranged in the cigarette placing chamber; the ash collecting bin arranged at the tail end of the cigarette containing pipe recovers residual ash in the cigarette containing pipe. The cigarette placed between the placing opening and the cigarette placing pipe is limited and locked through the locking assembly, the cigarette is placed thr