The utility model belongs to the colliery is the auxiliary transportation equipment field in the pit, and concretely relates to mining light -duty explosion -proof electric vehicle lacks the problem of small -size flexibility and pollution -free explosion -proof electric motor car in the pit to present colliery, and the chassis automobile body adopts steel sheet and shaped steel overlap joint to weld the integral type structure that forms, the semi -axis is moved in short pass that transmission system of motor includes explosion proof machine, differential reducing gear box, have a ball cage structure and semi -axis, left front, right front wet -type polydisc stopper are moved in the long pass, preceding, back independent suspension system architecture all includes and left bumper shock absorber, left swing arm, left stabilizer bar and right bumper shock absorber, right swing arm, right stabilizer bar sets up bumper shock absorber tie point, stabilizer bar tie point and swing arm tie point on the left angle of elevation and the right angle of elevation respectively. Under satisfying the prerequisite that structural strength required, adopt the lightweight design, the car quality is put in order to the minimize, has that the quality is light, overall dimension is little, compact structure, flexible and high efficiency, characteristics such as pollution -free, fields such as mainly used speedily carries out rescue work in the pit in the colliery, overhauls, tour.