Water steam distillation device with duplex effects of extraction and separation

The invention provides a water steam distillation device with duplex effects of extraction and separation, and belongs to a distillation device. The device is characterized in that a low-position extraction backflow device is inserted and arranged in a lower position of a steam pipe of a traditional water steam steaming pot, the device consists of two parts including a jacket condenser and a low-position oil-water separator, filling materials are arranged in the middle of the jacket condenser, the low-position oil-water separator can realize the water return operation, the extracted plant essential oil is divided into two parts, a high-position oil-water separator is used for separating essential oil with many low-boiling-point ingredients and few high-boiling-point ingredients, and the low-position oil-water separator is used for separating essential oil with many high-boiling-point ingredients and few low-boiling-point ingredients. The water steam distillation device sufficiently utilizes the advantages of