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 opening-and-closing mechanism is arranged on the hardness air cylinder, and a turning adjusting rod is fixed to the bottom of the hardness air cylinder. The manual
coal-mine-tunneling ventilation-air-
cylinder air outlet control device is convenient to install and use and high in safe reliability, the problems that as the local ventilator power is continuously improved, and the
diameter of the air cylinder is increased, circulation air is caused, the local air speed of a working area is super high, and the working condition is poor are solved, and an air-flowing field in a roadway can be reasonably controlled.