Portable livestock binding device for animal husbandry and veterinary medicine

The portable livestock binding device comprises a binding device body, a cross rod is arranged on the binding device body, a first supporting rod and a second supporting rod are arranged on the two sides of the binding device body respectively, the two ends of the cross rod are movably sleeved with limiting rings respectively, the lower ends of the limiting rings are connected with connecting pieces respectively, and the connecting pieces are connected with the binding device body. Movable supporting rods are clamped in the first supporting rod and the second supporting rod, connecting shafts are inserted between the lower end of the first supporting rod and the movable supporting rod and between the lower end of the second supporting rod and the movable supporting rod, the transverse rod is further movably sleeved with a fixed lantern ring, and a first fastening bolt used for fastening the fixed lantern ring is arranged on the side face of the fixed lantern ring; the lower ends of the fixing lantern rings ar