The present application relates to the field of building decoration auxiliary equipment, and discloses a
punching dust collection device for decoration, which comprises a cover body, a dust collection groove, an elastic telescopic
assembly and a negative pressure
generating unit. The cover body has an expanded end and a contracted end, the expanded end is provided with an elastic sealing
gasket for wall sticking operation, the side wall is provided with an inclined air inlet hole to form a wall sticking guide
airflow, and the bottom is connected with a dust guide groove and a filter screen. The dust collection groove is detachably connected to the bottom of the cover body. The elastic telescopic
assembly is arranged at the contracted end and comprises a bearing to isolate the rotary motion of the
drill rod. The negative pressure
generating unit is in communication with the cover body to generate a negative pressure
airflow. The present application combines the static sealing of the cover body with the dynamic following sealing of the elastic telescopic
assembly to realize the full-range surrounding of the drilling point. The wall sticking guide
airflow formed by the inclined air inlet hole and the negative pressure enhancement effect at the dust guide groove construct an efficient dust directional conveying path.