Aluminum liquid degassing machine is a kind of environmental friendly purification equipment.Degassing is injecting inert gas into molten aluminum so that hydrogen can be finally removed.Rotating degassing machine ejects inter gas firstly,then makes inert gas bubbles break up into very small gas bubbles by the rotor of high speed rotation,as well as makes gas bubbles evenly dispersed in the liquid metal.By reducing the bubbles diameter and the metal total surface active surge makes nore inert gas and hydrogen contact with the impurity so that bring these harmful materials to liquid surface.Argon and nitrogen can be used as the inert gas for degassing molten aluminum liquid.