This dual layer trash compactor manufactured by VICON adopts international advanced horizontal compaction technology. The dual layer trash compactor can be figured with single cart discharge spout or dual cart pusher type discharge spout according to the requirements about the trash treatment at peak period. The intelligent weighing system, traffic guidance system, dust extraction and deodorization system, monitoring and management system and GPS system are optional for clients. The first layer of this dual layer trash compactor is used for compaction and the second layer is used for collecting the trash. This dual layer trash compactor allows two garbage trucks to discharge the garbage at the same time. By this means, the compaction capacity can be increased at maximum. As a result, the dual layer trash compactor is suitable for large transfer station with daily capacity of 200-1200 tons of trash.