To provide a cooler for unhulled rice exhibiting an air (heat of the unhulled rice)-sucking effect in a very good efficiency even by using a construction of a single cooler for the unhulled rice equipped with a single air-sucking device, and when installing it in a housing vessel, capable of extremely easily being loaded e.g. by utilizing supporting cross rods such as lumbers, or the like spanned over the upper part of the housing vessel.

This cooler for unhulled rice constituted by installing hanged tube parts 2 for sucking air in the lower direction of an air-sucking device 1 by hanging, arranging the hanged sucking tube parts 2 by hanging into a housing vessel 4 such as a grain tank for housing the unhulled rice 3, or the like and also the air-sucking device 1 at the upper part of a housing vessel 4, so as to cool by sucking and exhausting the heat of the unhulled rice 3 by sucking the air in the housing vessel 4 from the hanged sucking tube parts 2 through the air-sucking device 1, is provided by installing horizontal tube parts 5 in the air-sucking device 1, constituting at least so as to be able to load the horizontal tube parts 5 on supporting cross rods 6 spanned over the upper part of the housing vessel 4 in a horizontal state, and successively installing the hanged sucking tube parts 2 in tube-separated and plurally hanged state at the horizontal tube parts 5.