A cleaning head (110) based on water and dust circulation and a cleaning apparatus. The cleaning head (110) based on water and dust circulation comprises a body (111) provided with a roller, wherein a strip-shaped cavity is formed in the body (111); two sides of an opening of the cavity are correspondingly provided with a water pressing strip (115) for pressing a surface of the roller and a scraping strip assembly (213) for scraping solid waste on the surface of the roller; the water pressing strip (115), the scraping strip assembly (213), the cavity and the surface of the roller form a closed cleaning water tank (A); and a water dividing strip for dividing the cleaning water tank (A) into a cleaning area and a water collecting area is arranged in the cleaning water tank (A).