Device for drying material, such as manure, mud and the like, comprising a grinding part and a drying part, as the drying part comprises at the least one conveyor belt ( 10 ) and an air heater ( 16 ). Above the conveyor belt it is arranged a closed air circulation system, leading air counter-current to the material on the conveyor belt. The temperature of the air heated in the heater ( 16 ), and the time wherein the material is dried, is adjusted in such a way that the dried material is free of bacteria and weed.
