The invention relates to an energy-saving type
coal-fired boiler with a water scale removal function. The energy-saving type
coal-fired boiler with the water scale removal function comprises a main body, a water tank and a heating chamber, and further comprises a
waste heat recovery mechanism and a descaling mechanism, wherein the descaling mechanism comprises a first motor, a screw rod, a slidingblock, a scraping plate and two connecting rods, the
waste heat recovery mechanism comprises an air storage chamber and an air injection
assembly, the air injection
assembly comprises two driving units and two air injection units, and each air injection unit comprises a connecting box, a hose and six nozzles. According to the energy-saving
coal-fired boiler with the water scale removal function,through descaling work, the descaling work can be carried out on the inner wall of the water tank, the situation that the water scale adhere to the inner wall of the water tank is avoided, and the heat conduction efficiency of the water tank is influenced; and through the
waste heat recovery mechanism, high-temperature
waste gas generated when the water tank in the heating chamber is heated can beguided into the nozzles to carry out heating and heat insulation work on the water tank, the situation that the high-temperature
waste gas is directly discharged into the
atmosphere is avoided, the energy is wasted, and the energy-saving property of the equipment is improved.