The bag dumping station is also called manual unpacking machine or bag opening station. Its body contains a filter and dust removal system with compact structure. The material recovered through the dedusting system falls into the storage hopper by gravity. The operator puts the bag on the bracket and pushes it into the iron grid. Next, the operator cuts a vertical opening in the bag and shakes the bag to empty it. The material in the bag can be transferred to a feeder through a hopper. The self-contained fan recovers the dust containing gas produced in the process of bag opening, and the automatic pulse back blowing dust remover cleans the dust regularly. The emptied bags can be sent to the waste bag compressor of optional equipment for treatment to ensure the cleanness of the site environment.