Anti-pollution vacuumizer capable of hanging objects and using method

The invention discloses an anti-pollution vacuumizer capable of hanging objects, which comprises a U-shaped supporting base, an adjustable vacuumizing mechanism, a clamping sealing mechanism and a hanging supporting mechanism, and is characterized in that a first servo motor drives a first screw rod to rotate, so that an anti-drop sliding column can be driven to move up and down in an anti-drop sliding groove; the adjustable vacuumizing mechanism moves up and down; meanwhile, a second servo motor drives a first collecting wheel to rotate, a first pull rope can be collected, an anti-falling sliding block is pulled to slide up and down on the outer wall of an anti-falling sliding rail, so that a supporting tray moves up and down, the height adjustment work is completed, in addition, a round wheel and a second lead screw are driven to rotate, a threaded hole square column reciprocates on the outer wall of the second lead screw, and the height adjustment work is completed. And an anti-falling through hole seat re