Air purifier and plasma generating device thereof

The invention discloses a plasma generating device, which comprises a frame body, a fixed adjustment structure, a plasma generating electrode and an insulated sleeve, wherein the frame body comprises a base with a cavity; the fixed adjustment structure is arranged on the base; the plasma generating electrode is wound on the fixed adjustment structure and passes through the base to extend towards the cavity; the insulated sleeve sleeves the plasma generating electrode; and the plasma generating electrode is contacted with the fixed adjustment structure via the insulated sleeve. Through sleeving the plasma generating electrode with the insulated sleeve and strengthening the plasma generating electrode, the plasma generating electrode can generate plasmas stably, the problem that electric leakage and sparking happen to the end part of the plasma generating electrode can be effectively solved, the plasma generating electrode quality is ensured, and the product performance quality is further improved. 本发明提供了种等离子体发