Extraction and stratification device

The utility model discloses an extraction and stratification device. The extraction and stratification device comprises an extraction tank and a stratification tank, wherein the extraction tank is arranged above the stratification tank; the extraction tank and the stratification tank are connected through a pipeline I; a viewing cup is arranged below the stratification tank; a valve I is connected below the viewing cup; the valve I is connected with a pipeline II and a pipeline III; the height of the pipeline II is 1/2-2/3 of that of the stratification tank; a valve II is arranged on the pipeline II; a valve III is arranged on the pipeline III. According to the extraction and stratification device, a hose can be used to perform stratification on feed liquor in the extraction tank through the stratification tank when extraction and stratification are performed on an interface of a water phase and an organic phase, so that the organic phase can be prevented from being separated, the yield or the solvent recovery rate is increased, the production cost is reduced, the environmental pollution is alleviated, and the safety risk is lowered.