Reaction kettle for preparing entecavir

The utility model discloses a reaction kettle for preparing entecavir. The reaction kettle for entecavir preparation comprises a kettle body, a plurality of sliding rails are symmetrically connected to the surface of a rotating shaft in the axial direction of the rotating shaft, sliding sleeves are slidably mounted on the sliding rails, first connecting rods are connected to the sliding sleeves, first stirring paddles are mounted on the first connecting rods, and fixing pieces are connected to the upper side of the inner wall of the kettle body; rotating shaft in rotating state, the iron pieces and the magnets alternately correspond to each other or do not correspond to each other; the stirring areas of the first stirring paddle and the second stirring paddle are continuously changed; therefore, the stirring area of the stirring device is increased; according to the stirrer, the stirring quality is improved, the stirring paddle moves in the vertical plane range to cut raw materials, the vortex direction of th