Grinding machine tool

A grinding machine tool comprises a machine shell, a driving assembly arranged in the machine shell and a flow guide structure. At least one air inlet and at least one first air outlet are formed in the machine shell, the driving assembly comprises a motor and an air flow generating piece synchronously rotating with the motor, the motor is provided with a motor outer cover, and the air flow generating piece is located at the end, not connected with a grinding piece, of the motor. The motor outer cover is provided with at least one first opening and at least one second opening communicated with the interior of the motor. The flow guide structure is arranged on one of the machine shell and the motor outer cover, the flow guide structure enables the grinding machine tool to be provided with a first airflow path, and the first airflow path sequentially comprises the air inlet, the first opening, the interior of the motor, the second opening, the airflow generating piece and the first air outlet. 一种研磨工具机，包含一机壳、一设于