Separated full-automatic steam generator

One end of each of two combined electric push rods is fixedly connected with an electric heater, a plurality of heat exchange sheets are equidistantly embedded into the inner side of a tank body, the side ends of the heat exchange sheets are slidably sleeved with a cleaning scraping frame, and a plurality of cleaning scraping strips are welded to the side end of a driven gear ring. A cleaning electric push rod drives a cleaning scraping frame to clean the surfaces of heat exchange pieces, a cleaning motor, a transmission gear and a driven gear ring drive a cleaning scraping strip to rotate along the inner wall of the tank body, the interior of the tank body is cleaned regularly in the heating process, the deposition amount of incrustation scale is reduced, and the incrustation scale is prevented from corroding the tank body. The slag discharging pipe is opened through the limiting valve, scale enters the inner side of the storage box along the slag discharging pipe, impurities are discharged through impact of