The invention discloses a clean incinerator. The incinerator comprises an incinerator body, the incinerator body is internally provided with a combustion chamber, the bottom of the combustion chamberis provided with a vertically arranged rotary shaft and a stirring arm which is connected with the rotary shaft, the stirring arm is provided with a primary oxygen supplying hole which faces the rotary shaft, the top of the combustion chamber is provided with a fume outlet, the side wall of the combustion chamber is provided with a feeding pipe and a secondary oxygen supplying hole, and the bottomof the combustion chamber is provided with an ash outlet which is close to the rotary shaft. The invention aims at providing a clean incinerator which can effectively improve the combustion capability and effect and save the energy.