Movable safety fence for subway construction

The utility model provides a movable safety guardrail for subway construction, and relates to the technical field of safety guardrails. The movable safety fence for subway construction comprises two fixing blocks, vertical rods are fixedly connected to the top faces of the two fixing blocks, connecting blocks are fixedly connected to the side faces, close to each other, of the two vertical rods, aprotective net is arranged in a crack of the two connecting blocks, and the two ends of the protective net are fixedly connected with the interiors of the two connecting blocks; the two side faces ofthe two fixing blocks are fixedly connected with sliding groove blocks. According to the movable safety fence for subway construction, by arranging the inserting blocks, the rolling wheels, the sliding groove blocks, the rotating shafts, the first gears, the second gears, the inserting rods, the first toothed plates, the push rods and the second racks, the effects of free moving, fixing and collision prevention of the fix