The utility model discloses an airtight consecutive reaction grease alkali refining device, including a jar body, the feeding valve has been offered to a jar body bottom, has offered a plurality of ejection of compact valves on the lateral wall of jar body, and the bleeder valve gate open is crossed the pipeline and is located jar ejection of compact pipeline of body top and is connected, the internal (mixing) shaft that is provided with by motor drive of jar is provided with stirring?paddle?leaf on. The utility model discloses an airtight consecutive reaction grease alkali refining device, the reaction liquid that mixes through with the meet a condition gets into a jar body with the velocity of flow of setting for from jar pipeline of the feed valve gate control of body bottom, react under the stirring?paddle?leaf's by the (mixing) shaft drive mixing?effect and fix time, when being satisfied reaction time, the required time and the velocity of flow react liquid at the internal height of jar according to reacting, it correspondingly selects proximate ejection of compact valve to carry out the ejection of compact (other ejection of compact valves keep closing) when high to reach at the liquid level that mixes reaction liquid, the realization regulation and control accurate to reaction time, and have concurrently and can completely cut off air and jar body utilization ratio up to 100% advantage.