Complete security device for outburst prevention drill for coal mines

The utility model relates to a complete security device for an outburst prevention drill for coal mines. The complete security device effectively solves the problems that emission of gas overruns, injury to operators is caused, security production of the coil mines is not ensured, usage is inflexible, and punching efficiency is low. Structurally, a blowout preventer comprises a sleeve and a blowout prevention pipe, wherein one end of the sleeve is connected with one end of the blowout prevention pipe through a first flange, a second flange is arranged at the other end of the blowout prevention pipe, and a wear-proof casing is arranged in the end where the second flange is positioned, of the blowout prevention pipe. An outlet is formed in the lower portion of the blowout prevention pipe and communicated with an inlet pipe of a coal-water separator through a pipeline, the coal-water separator is formed by a body and a water pool, the water pool is arranged on one side of the body connected with the water pool into a whole, an inlet pipe and a gas drainage opening pipe communicated with the pipeline are formed in the upper portion of the device, an inclined surface plate inclining downwards to the bottom of the water pool is arranged at the lower portion of the inlet pipe in the body, and the lower end of the inclined surface plate and an opening in the lower portion of one side of the body form an inlet of the water pool. The complete security device for the outburst prevention drill for the coal mines is simple in structure, novel and unique, small in size and convenient to install and use.