Engineer maintenance trolley

The invention relates to an engineer maintenance trolley, and belongs to the technical field of maintenance equipment. A double-layer tool box and a maintenance tool rack are arranged in the ladder type protective shell, a first driving mechanism and a second driving mechanism for driving the maintenance tool rack are installed in the ladder type protective shell, and first detection mechanisms are correspondingly installed on the double-layer tool box and the first driving mechanism; second detection mechanisms are correspondingly installed on the maintenance tool rack and the second driving mechanism. A maintenance power source and air source assembly, a maintenance trolley control assembly, an omni-directional moving trolley driving power source and a maintenance power supply source are further arranged in the ladder type protection shell. The double-layer tool box and the maintenance tool rack can be controlled to automatically stretch or retract through the first driving mechanism and the second driving