The invention discloses a purifying, high-pressure gas-supplying and detouring
combustion heat exchanger. The purifying, high-pressure gas-supplying and detouring
combustion heat exchanger comprises a plurality of plate type heat exchange units which are arranged and combined into a
combustion cavity for allowing a
combustor to place in, and a housing; a plurality of gas flow guide plates are arranged among the plate type heat exchange units; the plate type heat exchange units are arranged in the housing; the
combustor comprises a combustion fire
barrel extending into the combustion cavity, a
fuel gas mixing channel connected to one side of the housing, a pre-mixing fan connected to the
fuel gas mixing channel and an
air filter element arranged at an air inlet of the fan; and when the pre-mixing fan works, gas flow pressure is generated, so that air enters the
fuel gas mixing channel after being sucked through the
air filter element and purified. The purifying, high-pressure gas-supplying and detouring combustion
heat exchanger has the characteristics of being simple and practical in structure, low in manufacturing and wide in application, and has the advantages of being high in heat exchange rate, capable of effectively preventing scale formation by performing high-pressure purifying on air and mixing the air with fuel gas, more sufficient in combustion, energy-saving and
environmentally friendly, free of need to dismount and clean, long in service life and the like. The purifying, high-pressure gas-supplying and detouring combustion heat exchanger is a product with senior technical character, practicability and economical efficiency.