Chromatographic purification device for plant extraction

The utility model relates to the technical field of plant purification, and discloses a chromatographic purification device for plant extraction, which comprises a supporting seat, a connecting frame fixedly mounted on the inner wall of the supporting seat, a first arc-shaped plate fixedly mounted on the side edge of the connecting frame, a first lug fixedly mounted on the side edge of the first arc-shaped plate, and a screw hole formed in the first lug. A second arc-shaped plate is mounted on the side edge of the chromatographic column; a second lug block is fixedly mounted on the side edge of the second arc-shaped plate; a fixing bolt is rotationally mounted in the second lug block; an output channel is fixedly mounted at the bottom end of the chromatographic column; a sealing cover is mounted at the top end of the chromatographic column, a conveying channel is fixedly mounted at the top end of the sealing cover, a sealing ring is fixedly mounted at the joint of the conveying channel and the sealing cover,