Checkout localbitcoin.com, there are a number of Bitcoin merchants in Kenya who can facilitate your transactions., though can't guarantee their authenticity, only personally know one who's legit and whom I've bought Bitcoin from.
Btw someone on Twitter mentioned about a mining pool in Kenya. For those who are not familiar with the term, a mining pool is simply like a group of people who bring their cash together so that they can mine cryptocurrency. I haven't made a follow up on the same especially to find out how legit it is but when I do I'll be sure to give the info. The guy said they mine Bitcoin, so maybe there is still hope for those who wanna make some cash from Bitcoin