Mobile power supply device

The utility model relates to the field of temporary power utilization in building construction, in particular to a movable power supply device which comprises a movable frame, a generator, a switch box, an air pump and a support rod, the generator, the switch box, the air pump and the support rod are mounted on the movable frame, lighting equipment is mounted at the top of the support rod, and a grounding end of the generator is connected with one end of a grounding wire. The other end of the grounding wire is connected with an iron rod which is inserted into the ground; the generator is electrically connected with the switch box, the switch box is electrically connected with the air pump and the lighting equipment, and the switch box is further used for being electrically connected with mechanical equipment to be powered. The mobile power supply device provided by the utility model is convenient to circulate at each construction site, and integrates the generator, the switch box, the air pump and the lightin