Protective blanket laying device for treating soil salinization

The invention discloses a soil salinization treatment protection blanket laying device which comprises a rack, a ratchet wheel set and nails, a front press wheel, a transmission land wheel and a rear press wheel are sequentially arranged below the rack from front to back, a protection blanket supporting frame, a nail planting mechanism and a nail feeding mechanism are sequentially arranged on the rack from front to back, and a protection blanket is arranged on the protection blanket supporting frame. The nail planting mechanism comprises a track disc, a track disc supporting frame, a track disc shaft, a nail planting hammer and a nail storage cup, and the nail feeding mechanism comprises two nail feeding limiting fences, a nail storage drawing table, a nail pushing rod, a traction rope and a rope winding pull wire rod. The nail storage drawing table is located between the two nail feeding limiting fences so that a nail feeding track can be formed between the nail storage drawing table and the nail feeding lim