Separation device for producing tetrandrine

The utility model provides a separation device for producing tetrandrine, which comprises a low-temperature heating chamber, an evaporation chamber, a demister, a condenser and a liquid receiving tank, a backflow pipe is further connected between the outer side wall of the bottom end of the evaporation chamber and the outer side wall of the bottom end of the low-temperature heating chamber, the upper end of the evaporation chamber is further connected with the demister through a bent pipe, and the outer side wall of the bottom end of the demister is further communicated with the evaporation chamber through a circulating pipe. The side wall of the right end of the demister is communicated with the top end of the condenser through a pipeline, the lower end of the condenser is further communicated with the liquid receiving tank, the upper end of the evaporation chamber and the side wall of the liquid receiving tank are provided with a first vacuumizing pump and a second vacuumizing pump respectively, and a filte