Horizontal fuel fuel gas steam boiler

The utility model relates to a horizontal fuel fuel gas steam boiler can retrieve the heat in the hot flue gas to get rid of the most dust in the flue gas, it includes boiler body, waste heat recoverymachine structure, dust removal mechanism, draught fan and chimney, waste heat recovery machine constructs including waste heat recovery box and heat exchange coil, dust removal mechanism includes dust removal box, lower filter screen, elevator pump, shower and goes up the filter screen, horizontally connect has a baffle in the dust removal box, and the baffle will remove dust body cavity cuts apart into clean room and filter chamber, and clean room and filter chamber are high low level setting, have offered air outlet, air intake and overflow mouth on the clean room, and the air outlet is through going out tuber pipe and draught fan intercommunication, and the draught fan is still through exhaust pipe and chimney intercommunication, and the air intake passes through the air -supply lineand feeds through with hea