Novel debris flow protection net device

The utility model discloses a novel debris flow protection net device, which relates to the technical field of debris flow active protection equipment, is arranged in a gully and comprises a plurality of layers of protection nets parallel to a gully bed. A traditional vertically-arranged multi-section interception type protective net is changed into a multi-layer curtain type protective net arranged in parallel with the grain bed, and for large-particle debris flow substances, under blocking of the multi-layer protective net, the effect of reducing potential energy can be achieved; small particulate matters can stay on the gully bed, on one hand, the surface can be fixed to prevent water and soil loss when debris flow does not occur, growth of vegetation is facilitated, and the possibility of debris flow occurrence is reduced; on the other hand, when debris flow occurs, the curtain type protective net is in contact with the debris flow, energy of debris flow movement is weakened, harm caused by the debris flo