Msw incineration exhaust -heat boiler modularization economizer

The utility model relates to a msw incineration exhaust -heat boiler modularization economizer. The purpose is that the economizer that provides should have simple structure, maintain convenient characteristics. Technical scheme is: msw incineration exhaust -heat boiler modularization economizer, this economizer of its characterized in that be including two nests of tubes arranging side by side, every nest of tubes all include vertical arrange and by tube bank, level that many root canals subunit becomes arrange the tube bank top and with the first part case of pipe intercommunication and level arrange the tube bank bottom and with the next part case of pipe intercommunication, still arrange three perpendicular roof beams that are used for supporting first part case and next part case between the economizer left and right sides and two nests of tubes respectively.