The invention discloses a vertical high-temperature heavy metal pump hot air circulating system for convenient transportation and a use method thereof, the system includes a work box, a work space isarranged in the work box, a lifting groove is arranged in the right end wall of the work space, and the left end wall of the lifting groove communicates with the work space, a lifting block is slidably connected in the lifting groove, the lower end of the lifting block is fixedly connected with a lifting spring, and the lower end of the lifting spring is fixedly connected with the lower end wall of the lifting groove, the left end surface of the lifting block is fixedly connected with a lifting rod whose left end penetrates through the left end wall of the lifting groove and is positioned in the work space, and the left end of the lifting rod is fixedly connected with a pump body. The device has the advantages of simple structure and convenient operation. After the high-temperature metal pump completes the delivery of the metal liquid, the residual metal liquid is discharged from an inlet by using the residual heat of the metal liquid in the device, so as to avoid the residual metal liquid in the device and damage of the device. At the same time, a large amount of energy is saved by using the principle of the residual heat and the water circulation.