Overhaul lifting appliance for iron tower maintenance

The invention provides an overhaul lifting appliance for iron tower maintenance. The overhaul lifting appliance comprises a supporting part used for supporting a worker, two main suspension parts symmetrically arranged at the two ends of the supporting part, and a buckle pipe used for adjusting the suspension height of the overhaul lifting appliance. Any main suspension part is movably arranged ina pipe cavity of the buckle pipe in a penetrating mode, one end of each main suspension part is fixedly arranged on the bearing part, the other end of each main suspension part is connected with thebuckle pipe after bypassing an iron tower angle iron, and the main suspension parts are suspended on the iron tower angle iron; two auxiliary suspension parts for preventing the overhaul lifting appliance from loosening are further symmetrically arranged at the two ends of the bearing part, and when a worker uses the overhaul lifting appliance for iron tower maintenance, the ends, away from the bearing part, of the auxilia