Manual coal-mine-tunneling ventilation-air-cylinder air outlet control device

The invention discloses a manual coal-mine-tunneling ventilation-air-cylinder air outlet control device. The manual coal-mine-tunneling ventilation-air-cylinder air outlet control device comprises a support, a hardness air cylinder and a guiding rail. The hardness air cylinder penetrates through the support, the guiding rail is arranged above the support, hanging cables are connected to the top of the guiding rail, a sleeve is fixed to the top of the support, a sliding block is fixed on the sleeve and matched with the guiding rail, a universal joint is arranged between the top of the hardness air cylinder and the support, a rotating piece of the universal joint extends into the sleeve, a swinging piece of the universal joint is fixed to the top of the hardness air cylinder, a plurality of blades are arranged on an outlet in the hardness air cylinder and form a circular-truncated-cone-type structure, the small end of the circular-truncated-cone-type structure is close to the hardness air cylinder, a blade open