Wall skin cleaning device for building construction

The invention relates to the technical field of building construction, in particular to a wall skin cleaning device for building construction. The wall skin cleaning device comprises a rack, a pair of bearing frames are fixedly mounted at the bottom of the rack, an adjusting table is mounted at the tail ends of the bearing frames in a sleeving manner, a water tank is fixedly mounted on the adjusting table, and matching plates are integrally formed on the left side and the right side of the adjusting table. The wall skin cleaning device for building construction has the beneficial effects that a cam can be used for driving a scraper to impact a wall skin, so that an impact pit appears on the wall skin, the wall skin near the impact pit becomes loose, then a second rotating motor is used for driving the scraper to gradually scrape the wall skin by taking the impact pit as an entry point, and a lifting device can change the scraping position of the scraper; the wall skin can be quickly cleaned, the cleaned wall