The present invention relates to an integrated liquid-circulating dual pipe lamp comprising: a lamp unit which has a plurality of coils and filaments thereinside, and which has a position-fixing ring for fixing positions of the filaments； a lamp housing which has the lamp unit thereinside, and which has a circulation hole formed thereon so that liquid circulates outside the lamp unit at a predetermined temperature； watertight members which seal both end parts of the lamp housing, and into/through which both end parts of the lamp unit are inserted and penetrate； a liquid-circulation member which is coupled to the watertight member, which supplies a predetermined amount of liquid towards the circulation hole so as to circulate the same, and which discharges the circulating liquid according to the temperature of the liquid； and a reflection member in which the lamp housing is mounted.
