PURPOSE: To provide a heat recovery device using bubbles capable of manufacturing the hot liquid or simultaneously manufacturing the hot liquid and cold liquid by efficiently recovering the excessive heat from a factory or a building, or the urban exhaust heat or the like which is wastefully disposed.

CONSTITUTION: A heat recovery device using bubbles is provided with a high pressure blower 2 which sucks the exhaust gas 1 from a heat discharging source and compresses it in the condition of high temperature and high pressure, a high temperature heat recovery tank 4 to store the liquid 3 to collect the exhaust heat from the exhaust gas 1, and an exhaust gas header 7 which is provided to the lower part of the high temperature heat recovery tank 4, blows the exhaust gas 1 compressed in the condition of high temperature and high pressure by the high pressure blower 2 into the liquid 3 in the high temperature heat recovery tank 4, and brings the bubbles 6 into the direct contact with the liquid 3 to recover the heat.