The reality star tweeted on Friday that she helped fund the case of the man, only identified as Jeffrey, who had been sentenced to life in prison for the crime.
'We did it again! Had the best call with this lovely family and my attorney @msbkb, who just won the release for their loved one Jeffrey in Miami,' she tweeted, tagging attorney Brittany K Barnett.
'He served 22 years of life sentence for low level drug case. He served too much time but it gives me so much joy to fund this life saving work,' she added.
Barnett retweeted Kim's post, calling it 'such an amazing day'.
'Jeffrey should never have been sentenced to life in this case. Period,' she continued. 'America's addiction to incarceration devastates entire families.'
'So happy Jeffrey will be reunited with his family after 22 years! His life was saved today!'