The invention provides a high-efficiency spiral excavation equipment and its use method, which includes ear plates, a hoist structure, a first-level lifting
rope, a first-level lock, a first-level hanger, an outlet
barrel, a second-level lifting
rope, a second-level Lock buckle, secondary hanger, heat dissipation
tube structure, heat dissipation shell,
drive motor, primary
coupling, screw shaft, screw leaf, shield, quick screw-in shaft structure, secondary
coupling, export door and quick disassembly bolt. In the present invention, the hoisting casing, the double output shaft hoisting motor, the support frame, the first-level winding shaft, the first-level connecting shaft, the second-level winding shaft and the second-level connecting shaft are arranged to facilitate automatic lifting of the spiral excavation equipment, which can reduce labor intensity. Avoid manual lifting work; the settings of the export cylinder, screw shaft, screw leaf, export door and quick-release bolts can quickly export the unscrewed soil and improve the export efficiency.