A heat dissipation device for a wet and dry mixed sauna, comprising: a body formed of a metal material and having a box shape with an open top surface and comprising a wet heating part and a dry heating part； A steam guide having one surface vertically formed on the upper side of the main body part and a slanted surface with a plurality of steam discharge holes on the other surface； And a combustion part formed under the body part, wherein the wet heating part comprises a water supply part and a steam generation part, and a buoy having a floating valve is built in the water supply part, and a steam heater rod is provided in the steam generation part. Built-in, when water is supplied to the steam generator through the raw water inlet passage between the water supply unit and the steam generator, steam generated by heating of the steam heater rod is discharged through the steam discharge hole of the steam guide, and the dry heating The blowing portion is composed of a front cover and an upper cover having a plurality of heat radiation holes formed on the front surface of the first heating heater rod and the first heating heater rod disposed on the front surface of the wet heating portion, and the combustion portion has an internal space on the bottom surface of the body portion. A heat dissipation device for a sauna, characterized in that a second heating heater rod is horizontally disposed in the interior space, and a rotatable container for accommodating the roasting object is provided so that the roasting object can be cooked while the container rotates. It can be used as a combined heat and dry sauna radiator, and it releases high temperature heat into the room with high heat generated from the combustion section, and at the same time, it can bake grilled objects such as eggs.습식과 건식이 혼합된 사우나용 방열장치에 있어서, 금속재로 형성되고 상면이 개방된 박스형상이며 습식발열부와 건식발열부로 구성되는 본체부； 상기 본체부의 상측에 수직으로 일면을 형성하고 타면에는 다수개의 스팀배출공이 구비된 사선으로 경사면이 형성된 스팀가이드； 및 상기 본체부의 하측에 형성되는 연소부；를 포함하고, 상기 습식발열부는, 물공급부
