Multifunctional mobile power supply

The utility model relates to a multifunctional mobile power supply, which comprises a box body, a solar folding mechanism arranged above the box body and a sliding chute, the sliding chute is fixed above the right side of the box body, a sliding block is connected inside the sliding chute, the sliding block is electrically connected with a folding solar cell panel, and the folding solar cell panel is connected with the sliding chute. The foldable solar cell panel is divided into a left half part and a right half part which are rotationally connected, a clamping block is arranged at the lower end in the sliding groove, the clamping block is in a cuboid shape and matched with a groove formed in the lower portion of the sliding block, a power elastic piece is arranged at the lower end in the sliding groove, and a protective cover is rotationally connected to the lower end of the right side of the box body. When charging is used, the protective cover is opened and is electrically connected through a built-in elec