Multifunctional inflating device

The multifunctional air inflation device comprises a carrying trolley assembly and a unit air inflation mechanism, the carrying trolley assembly comprises a first vertical plate, a horizontally-arranged supporting bottom plate is installed at the bottom of the first vertical plate, a telescopic shear fork arm is installed on the supporting bottom plate, a bearing plate is arranged at the upper end of the shear fork arm, an electric push rod is installed on the supporting bottom plate in a hinged mode, and the unit air inflation mechanism is installed on the bearing plate. A piston rod of the electric push rod is connected with the shear fork arm, the electric push rod is started to drive the bearing plate to vertically ascend and descend, two sets of wheel carriers are installed on the first vertical plate on the side away from the bottom supporting plate side by side, and each wheel carrier is sleeved with a rotatable triangular support. The device has the advantages that the inflation tank can be moved to t