Pete Hannigan, who is a support worker at Christian rehab centre Yeldall Manor told Premier why the idea wouldn't have worked for him while he was an addict.
He explained: "My whole using was isolated. I didn't want to be using my drugs around any other addict or anything like that where they could ask for some or meet up with them.
He said many of the drug users he knew felt that way as well.
The number of drug-related deaths in the UK last year is reported to be the highest ever.
However, a Home Office spokesperson has rejected the suggestion for drug consumption rooms as a range of offences are likely to be committed in them.
Mr Hannigan echoed this point and told Premier: "You're enabling people to carry on in their addiction.
"In other words, saying to them 'we know you're using, why don't you come here and use you drugs?'
"It's preventing them from getting to that place of desperation but there is no freedom in that.
Mr Hannigan said that it wasn't until he heard God speaking to him once he had become suicidal that he decided to give up drugs.
Speaking about that time moment in his life, he said: "It wasn't just taking the drugs, it was actually the lifestyle - I was homeless, I was smelly.
"I believe now that the reason that the voice came to me then was because I was going to end my own life.
"I had been miserable for years and years but it was just that one indication of that voice at that time."
