The present invention provides a dual stove having a first communication part 10 coupled to the outlet 2 of the stove 1 and a second communication part 40 coupled to the upper end of the first communication part 10. It relates to a communication structure, and a connection support part 20 coupled to the upper end of the first communication part 10, an annular heat insulating material 30 and the connection support part 20 disposed inside the upper part of the connection support part 20 ) including a silicone cap 27 disposed on the open upper end of the connection support 20 so that the inner end is in close contact with the outer circumferential surface of the second communication part 40 to seal the open upper end of the connection support part 20, and the connection support part 20 is formed in a cylindrical shape so that the lower part 21 is coupled by inserting the upper end of the first communication part 10, the upper part 22 is formed in a cylindrical shape with an enlarged diameter with respect to the lower part, and the second communication part 40 ) is configured to be spaced apart from the first communication part 10 on the inside of the insulating material 30 in the connection support 20, and from the first communication part directly connected to the outlet of the stove. It is possible to reduce the cost by minimizing the use of an expensive insulating material to prevent burns by arranging the second communication part to be spaced apart from each other, and the first communication part and the second communication part are spaced apart from each other and transferred from the stove to the first communication part. As the heat is not transferred to the second communication unit that the user can contact, the second communication unit does not rise to a high temperature enough to cause burns to the user, thereby preventing user burns, thereby improving safety.
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