Convenient-to-maintain energy-saving broken black tea production line

The invention discloses a convenient-to-maintain energy-saving broken black tea production line. The conveniently-maintained energy-saving broken black tea production line comprises a primary hammer cutting machine, a stem picking machine, a stirring machine, a secondary hammer cutting machine, a granulating machine, a circular sieve machine, a fermenting tank and a drying machine which are sequentially arranged, wherein a material collecting bin is arranged between the primary hammer cutting machine and the stem picking machine. One end of an upper casing of the primary hammer cutting machine is hinged to a lower casing, and a quick dismounting and quick mounting mechanism is arranged between the upper casing and the lower casing, so that during cleaning and maintenance, the upper casing can be opened for cleaning and maintaining a material hammer cutting cavity, and maintenance is convenient; automatic transfer of a material between the primary hammer cutting machine and the stem picking machine can be achi