Environment -protecting energy -saving boiler

The utility model discloses an environment -protecting energy -saving boiler, including the boiler, reach the heat transfer mechanism with the boiler erection, still including setting up in the biomass gasification stove of boiler entry, and set up in the discharge fume economizer of tub output of boiler, and through the dust removal desulfurizing mechanism of draught fan with the installation of economizer output, the boiler includes interior stove, and sets up in interior stove outlying phase transition pipe, and set up in phase transition pipe outlying radiation shield casing, the biomass gasification stove includes the gasifier, and with the biomass fuel feed mechanism and the recirculated cooling water case of gasifier installation. The utility model discloses an environment -protecting energy -saving boiler on current boiler foundation, carries out the reducing energy consumption, sets up the biomass gasification stove at its front end, reaches the effect of complete gasification, abundant decoking, increases dust removal desulfurizing mechanism at its tail end, can reach air purification effect well, sets up a phase transition pipe with current boiler in addition, can promote its heat accumulation time, saves biomass fuel and improves heat exchange efficiency.