The invention discloses a multilayer wall embedded with a
phase change filling material and provided with a cavity. The multilayer wall comprises a concrete wall, a thermal insulating layer, a reflecting layer, a facing layer, a draught fan, a high temperature
phase change material
water pipe and a low temperature
phase change material
water pipe, wherein the cavity is formed in the concrete wall;the thermal insulating layer and the reflecting layer are sequentially arranged on the outer side of the concrete wall; an upper
tuyere and a lower
tuyere communicating with the cavity are formed inthe two ends of the facing layer; the high temperature
phase change material water pipe and the low temperature
phase change material water
pipe are arranged in the cavity; each of the high temperature
phase change material water
pipe and the low temperature phase change material water
pipe comprises a concentric pipe, a water inlet pipe and a water outlet pipe; the concentric pipe comprises an outer pipe, an inner pipe, a circular ring passage and a temperature sensor; and the circular ring passage with the two ends sealed is filled with the phase change filling material. The phase change filling material is controlled to absorb and release heat at
daytime and night of different seasons to adjust the temperature of the
indoor air. The multilayer wall is simple in structure and convenientand fast to operate, can effectively alleviate the fluctuation of the indoor temperature to improve the indoor comfort level and realizes the purpose of
building energy conservation all year round.