Phosphogypsum thermal insulation wall

The utility model discloses an ardealite thermal insulation wall which comprises a wallboard, a cavity is arranged at the top of the wallboard, thermal insulation particles are arranged in the cavity, a sealing plate is installed at the top of the wallboard, the shape of the sealing plate is matched with that of the wallboard, a flame retardant layer is installed at the bottom of the sealing plate, an ardealite layer is smeared on the top of the sealing plate, and T-shaped holes are formed in the four corners of the top of the sealing plate. A T-shaped hole is formed in the top of the wall plate, a bolt is arranged in the T-shaped hole, threaded grooves are formed in the four corners of the top of the wall plate, and the bottom end of the bolt is connected into the threaded grooves in a threaded mode. The heat preservation particles are arranged in the wall plate, the top of the wall plate is connected with the sealing plate through the bolt, and the flame-retardant layer is arranged at the bottom of the seal