The utility model discloses a retrieve device of butanol among follow low concentration organic waste water, the device contains waste water storage tank, charge pump, rectifying column, separates on cooling ware, top reflux pump, column bottoms pump, boils the ware. The utility model discloses process flow is simple, and the operating pressure is low, and the energy consumption is low, and recovery efficiency is high, is particularly useful for the processing including butanol low concentration organic waste water, retrieves simultaneously and obtains high concentration butanol product, has solved promptly to contain the pollution that butanol organic waste water caused to the environment, and recovery simultaneously obtains the butanol product and has created economic benefits.