Full-automatic liquid separation and negative pressure nucleic acid purification device

The utility model discloses a full-automatic liquid separation and negative pressure nucleic acid purification device, and belongs to the technical field of medical instruments, the full-automatic liquid separation and negative pressure nucleic acid purification device comprises a supporting box, one side of the supporting box is open, a purification box is fixedly mounted on the supporting box, and a plurality of partition plates distributed in an array are arranged between the left side and the right side of the purification box; a plurality of accommodating cavities are formed in the support box, nucleic acid purification plates are fixedly mounted in the accommodating cavities of the support box, a plurality of negative pressure bottles distributed in an array are arranged at the top end of the support box, the negative pressure bottles are communicated with the purification box through liquid extraction hoses, and the bottom ends of the liquid extraction hoses of the negative pressure bottles are located