Spiral elevator

The invention discloses a spiral elevator. The spiral elevator comprises a machine body and a lead screw, wherein the lead screw penetrates through the machine body and extends to the lower side of the machine body; the upper end face of the lead screw is fixedly connected with a limiting plate; two arc-shaped plates are arranged on the upper end face of the machine body; the two arc-shaped plates are oppositely arranged and are in annular shape; the lead screw is positioned between the two arc-shaped plates; the arc-shaped plates are fixedly connected with the machine body through fastening bolts; the upper surface of each arc-shaped plate is fixedly connected with semicircular wiping cotton; the side wall of each semicircular wiping cotton is in contact with the side wall of the lead screw; a storing cavity is arranged in each arc-shaped plat; and the side wall of each storing cavity is in contact with a pressing plate. According to the spiral elevator, lifting can be lubricated and maintained automatically