Portable lifting appliance for replacing grinding wheel of grinding machine and using method of portable lifting appliance

The invention provides a portable lifting appliance for replacing a grinding wheel of a grinding machine and a using method of the portable lifting appliance, belongs to the technical field of grinding wheel replacing equipment, and solves the problems that the operation activity frequency of replacing the grinding wheel after the grinding wheel is worn to a certain extent is high, and an original grinding wheel lifting appliance has safety risks, high labor intensity and long consumed time. The main body frame is formed by connecting a cross rod and a vertical rod, the cross rod and the vertical rod are connected at an acute angle, the end part of the cross rod is connected with a lifting lug sleeve, a swinging lifting lug is sleeved in the lifting lug sleeve, the upper part of the swinging lifting lug is provided with a through hole, the bottom of the swinging lifting lug is provided with a boss, and the hanging groove and the vertical rod are connected at an obtuse angle; the method further comprises the f