Demolding-free sandwich foam concrete wall

A demolding-free sandwich foam concrete wall comprises demolding-free formworks, a steel wire net rack, a heat preservation plate, supporting cushion blocks, formwork pull rods and cast-in-place foam concrete. The heat preservation plate is located right in the middle of the wall. The steel wire net rack is composed of two steel wire net pieces and web wires, wherein the steel wire net pieces are located on the two sides of the heat preservation plate and keep a certain distance away from the heat preservation plate, the steel wire net pieces on the two sides of the heat preservation plate are connected together through the web wires to form the steel wire net rack, and the web wires penetrate through the heat preservation plate in an inclined mode. The demolding-free formworks are located on the outermost sides of the wall. The supporting cushion blocks are arranged between the demolding-free formworks and the heat preservation plate. The distance between the demolding-free formworks and the heat preservation plate can be controlled through the supporting cushion blocks. The cast-in-place foam concrete is poured between the demolding-free formworks and the heat preservation plate. The formwork pull rods penetrate through the demolding-free formworks and the heat preservation plate. By adjusting the length of the formwork pull rods, the distance between the demolding-free formworks on the two sides can be adjusted, the thickness of the wall can be controlled, the positions of the demolding-free formworks can be fixed, and it can be ensured that the demolding-free formworks are free of displacement in the concrete pouring process.