A air supply device for mine

The utility model discloses an enough guarantee an air supply device for mine of mine depths air feed. This an air supply device for mine is including first fan, second fan, first tuber pipe and second tuber pipe, first tuber pipe one end and first fan intercommunication, the other end is the open end, second tuber pipe one end and second fan intercommunication, the other end is airtight end, be provided with a plurality of communicating pipes between first tuber pipe and the second tuber pipe, be provided with the atmospheric pressure individual event switch that switches on to first tuber pipe by the second tuber pipe on communicating pipe, the second fan is provided with pressure measurement with the junction of second tuber pipe. Adopt this an air supply device for mine, can guarantee the air feed of mine, improve mine work's security. 本实用新型公开了种能够保证矿井深处供风的用于矿井的供风装置。该用于矿井的供风装置，包括第风机、第二风机、第风管以及第二风管；所述第风管端与第风机连通，另端为开口端；所述第二风管端与第二风机连通，另端为密闭端；所述第风管与第二风管之间设置有若干连通管，所述连通管上设置有由第二风管向第风管导通的气压单项开关；所述第二风机与第二风管的连接处设置有压