Metal powder pretreatment pulverizer

The utility model relates to a metal powder pretreatment pulverizer which comprises a machine box, a crushing roller rotationally connected in the machine box and a driving motor driving the crushingroller to rotate, an upper shell is hinged to the upper surface of the machine box, a pulverizing chamber is formed between the machine box and the upper shell, and the crushing roller is arranged inthe pulverizing chamber. And a detachable fixing assembly is arranged between the case and the upper shell. When the driving motor works, the upper shell is fixedly connected with the case through thefixing assembly, so that the crushing chamber is kept closed to crush; when the fixing assembly is disassembled, a user only needs to turn over the upper shell to open the crushing chamber, the crushing chamber can be cleaned, disassembly of the upper shell and the case is achieved, and therefore the effect of facilitating cleaning of residual materials is achieved. 本实用新型涉及一种金属粉末预处理粉碎机，其包括机箱、机箱内转动连接的破碎辊以及驱动破碎辊转动的驱动电机，机箱的上表