Medicinal material cold extraction device and use method thereof

The invention belongs to the technical field of medicinal material extraction, and particularly relates to a medicinal material cold extraction device and a using method thereof, and the medicinal material cold extraction device comprises a low-temperature extraction device, a filtering storage device and an air exhaust mechanism matched with low-temperature extraction. By arranging the low-temperature extraction device, the filtering and storing device and the air exhaust mechanism matched with low-temperature extraction for use, the low-temperature extraction device heats water in the first tank body through the heating pipe, so that water in the first tank body heats and extracts water in the second tank body, and the second tank body is in a sealed state when being heated, so that the extraction efficiency is improved; meanwhile, a screen plate blocks the medicinal materials and filters the medicinal materials to a certain extent, and meanwhile, a heater, a first temperature sensor and a second temperatur