The invention discloses a functional cigarette holder with switchable airflow channels. The functional cigarette holder comprises a filtering cylinder, a cigarette inserting opening is formed in one side of the filtering cylinder, a suction nozzle is arranged on the other side of the filtering cylinder, an annular particle mounting tube is arranged in the filtering cylinder, filtering particles are placed into the annular volume of the particle mounting tube, a flue gas through tube is formed in the middle of the annular volume of the particle mounting tube, an external air through hole is formed in the side wall of the particle mounting tube, and an internal air through hole is formed in the end side of the particle mounting tube and positioned on one side of the suction nozzle. The functional cigarette holder with the switchable airflow channels is provided with two air through channels, the external air through hole is externally communicated with external air, the internal air through hole is communicated with the suction nozzle, and airflow with fragrance increasing filtering particles and flue gas in the flue gas through tube are combined, so that fragrance is increased and supplemented.