Bluetooth is generally used for phones, to send information from your phone to a device, that you put in your ear, but also serves as a "social network" if you want to think of it that way. Because with Bluetooth on your phone you can turn it on and find other people who have bluetooth and can send images, videos and other media and contacts as well to other phones who have bluetooth, even if they cannot have receive media messages.
While WiFi is mainly used for computers and smart phones, to access the internet in a "hotspot" area. It's like internet on the go!
I hope this helps, because you were vague with your question. Plus I believe you misspelled a few things. :\
Bluetooth is personal network, the range is quite short (across a room)
WiFi is a LAN, range is possibly hundreds of metres
Bluetooth is used to communicate between single devices like headphones and cellphones, or between a phone and a laptop. It doesn't really support routing or interactive login or normal network protocols like HTTP. WiFi can be used for a normal internet connection