The decision comes just three weeks after the federation banned 31 athletes for doping offences and less than a fortnight ahead of a September 7 International Olympic Committee (IOC) vote on whether Istanbul, Madrid or Tokyo will host the 2020 Olympics.
In May, the International Association of Athletics Federations (IAAF) said Yanit faced a ban following "multiple positive findings in both in-competition and out-of-competition tests".
The Turkish federation said it made its decision to ban the 27-year-old athlete at a disciplinary board meeting on Tuesday.
Asli Cakir Alptekein, last year's women's 1,500 metres Olympic champion, who had already served a two-year doping ban, was provisionally suspended in May after abnormalities were detected in her "biological passport".
(Writing by Daren Butler; Editing by Nick Tattersall/John O'Brien)
