Orepass dust control mechanism

The utility model relates to an orepass dust control mechanism. A communicating passage (3) is arranged at a position under each middle section (5), which is close to a branch orepass (4) communicating with the middle section (5), and both ends of the communicating passage (3) respectively communicate with an orepass (1) and a spoil orepass (2). The two orepasses are pressure release orepasses for each other. When an orepass system discharges ores, the air in front of the falling direction of ores is rapidly compressed (positive pressure area), so that impact air pressure is generated, the vast majority of impact airflow passes through a circular air path of 'orepass-communicating passage-spoil orepass-communicating passage-orepass' for the two orepasses are pressure release orepasses for each other via the communicating passages, so that the dirty air is closed and circulated in the system formed by the orepass and the spoil orepass, consequently, the dusty airflow spurted by the mouth of the branch orepass