Temporary support defense network device

The invention relates to a temporary support defense network device, which is characterized by comprising head-on defense networks and two-side defense networks, wherein each head-on defense network comprises a frame-shaped framework formed by welding steel pipes; a plastic steel network is bound on the frame-shaped framework by using an iron wire; the middle part of the frame-shaped framework iswelded with a transverse steel pipe; a sleeve is rotationally sleeved on the transverse steel pipe; the middle part of the sleeve is vertically welded with an inclined strut pipe; the top of the frame-shaped framework and the other end of the inclined strut pipe are welded with an anti-falling device clamp respectively; claws on the two anti-falling device clamps are clamped on a front detection beam respectively, and are tightened by using tools; each two-side defense network comprises a frame-shaped framework formed by welding steel pipes; a plastic steel protective sheet is bound on the frame-shaped framework of ea