high efficiency energy saving and heating multipurpose pressure-free boiler

The utility model relates to a high efficiency energy-saving multipurpose heating non-pressure boiler, particularly a non-pressure boiler which is provided with a plurality of fold line type flues, wherein, each flue is corresponding to a combustion chamber and a high temperature water tank. The utility model can be widely used for the heat supply and the heating of public organizations. The utility model can be used for supplying boiled water and hot water for bathing continuously during non-heating period, and the utility model can also provide micro-pressure steam, so the utility model has multiple functions. The utility model has the advantages of coal saving, conspicuous electricity-saving effect, convenient operation, no noise, low smoke concentration, security, no pressure and excellent environment protecting performance.