Quenching waste heat boiler

The utility model discloses a quenching waste heat boiler, which is composed of a smoke inlet base, a heat exchange section assembly, a smoke outlet device, a steam pocket, a downcomer and an ascension pipe; the heat exchange section assembly is composed of a bundling heat exchange tube, sleeves, an upper header and a lower header. The quenching waste heat boiler is characterized in that the lower end of the heat exchange tube is directly communicated with the smoke inlet base by passing through the lower header, the upper end of the heat exchange tube is directly communicated with the smoke outlet device by passing through the upper header, a sleeve is sleeved outside each heat exchange tube, a water-steam channel is formed between the sleeve and the heat exchange tube, the lower end of the sleeve is extended into the lower header, and the upper head of the sleeve is extended into the upper header. The quenching waste heat boiler has the advantages of rational structure, simple operation and long service life.