In　this　paper,　we　report　a　new　method　to　generate　tunable　high-repetition-rate　temporal　cavity　solitons　(TCSs)　in　a　nonlinear　fiber　cavity,　which　is　driven　by　dual　Brillouin　laser　pulses.　This　method　is　more　feasible　than　generating　solitons　via　a　continuous　optical-driven　nonlinear　cavity　because　of　the　enhanced　four-wave　mixing　process　triggered　by　the　high　peak　intensity　Brillouin　laser　pulses.　The　generated　TCSs　lock　to　the　beating　signal　arriving　from　dual　Brillouin　pulses,　which　allows　the　repetition　rate　of　the　solitons　to　be　directly　tuned　all-　optically.　The　TCSs　can　be　continuously　tuned　over　a　repetition　rate　range　of　140　similar　to　242　GHz　by　controlling　the　external　dual-wavelength　spacing,　and　the　pulse　duration　can　be　accordingly　adjusted　from　0.9　ps　to　513　fs.　Such　TCSs　with　tunable　high-repetition-rate　can　provide　a　practical　solution　for　the　low-noise　controllable　millimeter-wave　and　terahertz　sources.