Mining intrinsic safety type voice system and voice device thereof

The invention relates to a voice conversation system and a voice device, and particularly relates to a mining intrinsic safety type voice system and a voice device thereof. The system comprises an intrinsic safety power supply, a communication data transmission medium, a data processing unit, an ethernet switch unit and voice devices. The data processing unit is provided with a core processing unit, a microphone unit, a pre-amplification unit, a hardware encoding unit, a hardware decoding unit, a power amplification unit, a loudspeaker unit and a button and display unit. The voice devices are communicated via an ethernet, and each voice device is allocated with one IP address. The switch unit supports a full duplex working mode. The mining intrinsic safety type voice device is the voice device adopting the system. A full duplex conversation between any two voice devices or the full duplex conversation with ground dispatching can be realized by the system and the voice device so that dispatching of working personnel under mines can be conveniently realized, and thus coal mine safety production efficiency can be enhanced.