Multifunctional rear end cover of motor

The invention provides a multifunctional rear end cover of a motor. The multifunctional rear end cover comprises a first housing and a second housing fixed on the upper end of the first housing, wherein a positioning ring is fixed on the second housing, a dust detector and a temperature detector are fixed in the first housing and electrically connected with a driving motor, the driving motor is fixed on the second housing, the output shaft of the driving motor penetrates through the second housing, and rotation blades are fixed to the top end of the output shaft. The dust detector and the temperature detector detect the temperature and dust concentration in the motor to further control starting of the driving motor. The dust detector and the temperature detector detect the temperature and dust concentration in the motor to further control clockwise and anti-clockwise rotation of the rotation blades, thereby improving the heat radiation effect of the rear end cover. Dust in a motor can be effectively cleaned,