PURPOSE: To prevent cold air from colliding against eating and drinking men around a table by a method wherein the circulating passage of cold air, entering into a case from an outlet and inlet port through the upper part of a crescent conveyer and descending along the other inner surface of the case, is provided.

CONSTITUTION: A case 5 is provided with a suction port 13 equipped with a fan 12 at the outside lower half of the same while pinching heat insulating material 6 and a cooler 15 is mounted so that an outlet port or a honeycomb air regulator 14 is positioned at the lower part on the inner surface of an outlet and inlet port 11. The air outlet port of the honeycomb air regulator 14 is slanted slilghtly toward the side of a transparent glass 9. cold air, coming out of the honeycomb air regulator 14, ascends while slanting toward the transparent glass 9 slightly, then, is collided against a hood 10 and descends between a partitioning wall 16 and the transparent glass wall 9 and thus constitutes the circulating passage of the cold air arriving at a suction port 13. According to such constitution, roast meat materials, cooked in a cooking chamber 1, are put on respective dishes on a crescent conveyer 3 through a supplying port formed by notching the transparent glass 9 and the partitioning wall 16, and then is supplied to the vicinity of a roast meat table 2.