The utility model discloses a ANG of double metal structure adsorbs storage tank, including the storage tank main part that has the double metal structure, be located natural gas outlet pipe in the storage tank main part, diffuse mouthful and relief valve, natural gas air inlet and drain, the storage tank main part built -in have heat transfer system and a braced system, the bottom of storage tank main part is provided with the buffering support, the braced system a plurality of circular supporting plate, vertical the linking firmly in a plurality of risers between each backup pad edge that set up including parallel interval from top to bottom, the backup pad on evenly arranged a plurality of louvres, heat transfer system including loading phase change material between the storage tank main part double metal structure, erect in the spiral coil of storage tank main part central authorities. The utility model discloses the built -in phase change material of application bilayer structure, the fuel factor influence can effectively be eliminated to the cooperation jar intraductal cooling water of inner disc, has characteristics such as easy operation, the vibration resistance is strong, the security performance is high, application scope is wide.