A lightweight, thermal insulation, fire, water, noise, environmental protection wall insulation

The present invention relates to a lightweight, thermal insulation, fire, water, sound, environmentally friendly insulation wall, including wall panels, wall panels filled with casting material, said casting material comprising the following parts by weight of constituents: cement 20-50 parts of water, 27-57 parts, 15-45 parts of fly ash, 10 to 40 parts construction waste, polystyrene particles (diameter 4-6mm) 0.5-3 parts, 0.04-0.35 parts of hydroxypropyl methylcellulose and then dispersible powders 0.15-0.45 parts.