<cflogout>

It opens directed page but, infact it stays logged in.

What does this say when you put it in the redirected page:

<cfoutput>#getAuthUser()#</cfoutput>

Here is mine:

<cflock timeout="10" scope="application" type="exclusive">
<cfset StructClear(session)>
</cflock>
<cflogout>
<cflocation url="somewhere">

Maybe clearing the session is the step you are missing.

I did,
It opens directed page but, infact it stays logged in. after logged out and tring to relog with another member it doesn't allow it stats logged in with previoue user.

Set up a link to a logout page. On that page, have a cflogout tag and a redirect of some sort.