Mulberry leaf essential oil extraction and purification method and centrifugal machine for extraction

The invention belongs to the technical field of mulberry leaf essential oil extraction, and discloses a mulberry leaf essential oil extraction and purification method and a centrifugal machine for extraction. The centrifugal machine comprises a fixedly-arranged centrifugal tank, a rotary drum assembly, a feeding assembly and a discharging assembly; the rotary drum assembly rotatably is arranged in the centrifugal tank, a liquid outlet cavity is formed between the rotary drum assembly and the centrifugal tank, an inclined separation cavity is formed in the rotary drum assembly, and a liquid outlet and a slag outlet are formed in the top and the bottom of the separation cavity respectively; the distance between the liquid outlet and the center of the rotary drum assembly is smaller than that between the slag outlet and the center of the rotary drum assembly; the feeding assembly is sequentially provided with two groups of feeding ports from top to bottom, the two groups of feeding ports are respectively an uppe