Diethyl ether waterfree treatment device

The utility model provides a diethyl ether waterfree treatment device which comprises a material diethyl ether heating tank, a coarse-effect separation column, a calandria condenser, a refined diethyl ether receiving tank and a tail gas absorbing tank, wherein the coarse-effect separation column is connected on the material diethyl ether heating tank, the outlet of the coarse-effect separation column is connected with the inlet of the calandria condenser, the outlet of the calandria condenser is connected with the refined diethyl ether receiving tank, and the tail gas outlet of the calandria condenser and the tail gas outlet of the refined diethyl ether receiving tank are respectively connected with a tail gas absorbing liquid seal tank. Material diethyl ether fully reacts with metal sodium by heating backflow in the material diethyl ether heating tank to reduce the water content of impurities in the material diethyl ether, and the coarse-effect separation column is used for conducting coarse separation, and