Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here
To put coal in the furnace and smelt iron
What actually happened was...:
Describe what happened here
I put the iron in but couldn't put the coal in and tapped on the iron but it didn't go to my inventory
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...put the iron on the top
3. ...put coal on bottom
Really? Just... really. Is it too much of a challenge to use the search function to see if your bug has already been submitted? This is about the bazillionth double-up of MCPE-2453.