Sound barrier unit board device for preventing noise pollution

The invention relates to a sound barrier unit board device for preventing noise pollution, and belongs to the field of environmental protection. The sound barrier unit board device is composed of a sound absorption board, a sound absorption material and a sound barrier, wherein the sound absorption material is arranged in a cavity body formed between the sound absorption board and the sound barrier. Sound waves enter the porous fiber sound absorption material through sound absorption holes in the sound absorption board, a lot of tiny communicated pores are formed in the inner part of the porous fiber sound absorption material, and the sound waves can go deep into the inner part of the material along the pores and generate a rubbing effect with the material to convert sound energy into heat energy. The sound waves penetrating through the fiber sound absorption material impact to the surface of a sound insulation material and then are reflected to the porous fiber sound absorption material to generate a secondary rubber effect with the material to convert the sound energy into the heat energy again, and therefore the sound insulation effect is achieved.