Molecular distillation device capable of automatically forming film without stirring

The utility model provides a molecular distillation device capable of automatically forming a film without stirring, the molecular distillation device comprises a cylinder body, a condensing device and a liquid distributor, the top of the cylinder body is of a curved surface structure, the middle of the cylinder body is of a straight surface structure, the top of the cylinder body is provided with a feeding hole, the curved surface structure is a smooth curved surface which diffuses by taking the feeding hole as a center, and the liquid distributor is arranged in the middle of the cylinder body. A liquid distributor is coaxially arranged at the position, close to the feeding port, of the top of the barrel, a condensing device is arranged on the outer surface of the barrel in a surrounding mode, a liquid inlet is formed in the top of the condensing device, a vacuum port is formed in the bottom of the condensing device, and the liquid inlet and the feeding port are coaxially arranged. According to the molecular