The invention discloses a material cooling device. The material cooling device comprises a housing (1), a rotary material bed (2), a material feeding pipe (3), a material discharge pipe (5) and a driving device (6). The material feeding pipe goes through the housing and enters into the inner cavity, the driving device drives the rotary material bed to rotate so that the material can flow inwards on the rotary material bed along a radial direction and flow out of the material discharge pipe, the material cooling device comprises a material blending plate (8) and a cooling liquid injection system, the cooling liquid injection system comprises multiple top sprayers (9) which are arranged above the rotary material bed and inject a liquid coolant to the material surface, the material blending plate is connected to the housing, faces to the rotary material bed and is inserted into materials so that through rotation of the rotary material bed, the material blending plate stirs the materials. Through the top sprayers, the rotating materials are uniformly cooled. Through an insertion sprayer (11) inserted into the rear part of the material blending plate, and the liquid coolant is fully injected to the materials stirred by the material blending plate so that cooling effects are further improved and technical requirements are satisfied.