Energy-saving building curtain wall capable of absorbing sound

The utility model discloses a sound-absorbing energy-saving building curtain wall, and relates to the technical field of building curtain walls, the sound-absorbing energy-saving building curtain wall comprises a stone plate uniformly covering a wall surface, the stone plate comprises a first stone and a second stone which are vertically adjacent, a dry hanging piece used for hanging the stone plate is arranged on the wall surface, and the dry hanging piece comprises a first connecting strip and a second connecting strip; the first stone is provided with a first connecting groove allowing the first connecting strip to be connected in an inserted mode, the second stone is provided with a second connecting groove allowing the second connecting strip to be connected in an inserted mode, a gap is formed between the opposite surfaces of the first stone and the second stone, and the dry hanging piece is slidably connected with a first sound absorption strip which is parallel to the wall face and used for covering t