A kind of soaking type grain baking universe device, comprising: one dries universe portion, and an impurity separation unit and an impurity collection portion etc. are formed. Wherein, plural groups grain guide mechanism is set in the baking universe portion, guides grain sequential advancement with what, which is respectively provided with hot air blow port, plural section hot air blow port is formed, and the direction of each section of the blown out hot wind of hot air blow port is reversed each other. The impurity separation unit separates grain with impurity such as empty paddy, deadwood, dead leaves by the effect of the rotary centrifugal force of a knock-out drum. The impurity collection portion has a baffle, and impurity can be made to take advantage of a situation along baffle and fall to opening, and air-flow can then continue to move ahead. It dries the universe by drying the plural number multistage interaction in universe portion, and the uniform baking universe is carried out to wet paddy, and each face of wet paddy can be made averagely heated, reach the purpose for drying the universe completely, to improve in a manner of the heated baking universe in known wet paddy unilateral side, wet paddy can not dry the universe completely, or the unilateral excessively baking universe, poor quality disadvantage. It will dry the grain and impurity quick separating of universe Hou by the thin-bed effect of impurity separation unit. Impurity is settled by impurity collection portion simultaneously and is collected, environment is avoided pollution.一種均熱式穀粒烘乾裝置，包括：一烘乾部，一雜質分離部，以及一雜質收集部等所組成。其中，該烘乾部內設置複數組穀粒導引機構，用於導引穀粒順序前進，該複數組穀粒導引機構各設有熱風吹出口，形成複數段熱風吹出口，而每一段熱風吹出口所吹出熱風之方向互為反向。該雜質分離部藉由一分離鼓之旋轉離心力的作用，將穀粒與空穀、枯枝、枯葉等雜質分離。該雜質收集部具有一擋板，可使雜質沿著擋板順勢掉落至開口，而氣流則能繼續前行。其藉由烘乾部之複數多段交互烘乾，對濕穀進行均勻之烘乾，即可使濕穀各面平均受熱，達到完全烘乾之目的，以改善習知濕穀單側受熱之烘乾方式，濕穀無法完全烘乾，或單側過度烘乾，品質不佳之缺點。其藉由雜質分離部之薄層效應，將烘乾後之穀粒與雜質快速分離。同時藉由雜質收集部將雜質沉降收集，避免汙染環境。
