Sound-insulating wall

The utility model relates to a sound-insulating wall which is used for isolating sound in road, railway, building operation worksite and airport. The utility model is composed of a closed box body sound insulation plate (2) whose interior is embedded with sound-absorbing material (1) and the installation frame (3) of 'H'-shaped steel. A 'Z'-shaped spring clip (4) is arranged between the splicing positions of the plate and the 'H'-shaped steel. Both sides of the bevel-shaped bottom of the plate are provided with discharge holes (5), and both sides of the plate are provided with rubber sealing strips (6). A sealing strip (11) is arranged at the junction of the plate. Both sides of the plate are respectively provided with a top and a bottom vertical through holes (8), in which a steel cable (9) is penetrated. The plate unit is firmly connected, and the top end of the 'H'-shaped steel is provided with a lifting bolt for fixing the sound-insulating wall. The utility model has the advantages of good sound-insulation effect, easy cleaning and firm connection.