← Minecraft Blaze Farm by Snocrash
A simple blaze farm allowing you to harvest all the Blaze Rods

 

World Download:  Easy Minecraft Blaze Farm by Snocrash

 

Alternative method of deactivating the blaze spawner. Using Jack o'Lantern or Glowstone:
Alternative Way to Deactivate Blaze Spawner

UPDATE :

Some people are having problems with the Blaze being ejected.

Remove the following two blocks to resolve that issue: