The invention relates to a coal mine power distribution device, and particularly relates to a coal mine explosion-proof enclosed split-phase direct-driven vacuum circuit breaker. The coal mine explosion-proof enclosed split-phase direct-driven vacuum circuit breaker comprises a vacuum arc-extinguishing chamber and permanent magnet mechanisms. The vacuum arc-extinguishing chamber is an enclosed pole column. Each phase of the enclosed pole column is equipped with one permanent magnet mechanism, i.e. one vacuum circuit breaker applies three permanent magnet mechanisms to be connected with the enclosed pole column respectively. The permanent magnet mechanisms and the enclosed pole column are connected via an insulating pull rod and a driving rod. Magnetic conductivity of iron core material is great, the device size is small, the structure is simple, transmission links are less, cumulative movement tolerance is low and action response time dispersion is low, and synchronous closing operation of a high-voltage circuit breaker can be realized according to positioning information of a voltage or current phase angle of three-phase switching and closing time so that the foundation for intellectualization of explosion-proof equipment can be laid; meanwhile, the permanent magnet mechanisms adopt a hybrid power supply mode to supply sufficient energy to operation of the circuit breaker so that reliable operation of the equipment when a power system has faults can be guaranteed.