Sound-absorbing prefabricated column

The sound-absorbing prefabricated column comprises an outer layer, an inner layer and a connecting plate, the outer layer is hollow, the inner layer is located in the outer layer, the outer layer and the inner layer are both vertically arranged, the connecting plate is located between the inner layer and the outer layer, the connecting plate is fixedly connected with the inner layer and the outer layer, and a plurality of sound collecting holes are evenly formed in the side wall of the outer layer. The sound collection holes penetrate through the thickness of the outer layer, and first sound absorption cotton is filled between the inner layer and the outer layer. The prefabricated column has the effect that the prefabricated column can absorb sound. 本申请涉及一种吸音预制柱，涉及预制柱的领域，其包括外层、内层和连接板，外层内部中空，内层位于外层内，且外层与内层均竖直设置，连接板位于内层与外层之间，连接板与内层、外层均固定连接，外层侧壁上均匀开设有若干个集音孔，集音孔贯穿外层的厚度，内层与外层之间填充有第一吸音棉。本申请具有使预制柱能够吸音的效果。