The blast furnace is designed with a series of advanced technologies, such as charging belt or charging bridge, brick & wall integration and thin wall lining with complete coverage of blast furnace body, copper cooling stave, composite furnace bottom with carbon brick and ceramic cup, soft water enclosed circulating cooling system, rectangular planarization casting house, serial bucket type bell-less top charging system, improved top combustion type hot blast stove, full dry method bag filter, PCI and etc.