How To Show Different Footers For Different Post Types Pages?

You can use is_singular() instead.

According to Codex, you can use this function the following way:

is_singular($post_type);

Then you can print your desired code into footer the following way:

function my_footer_code() {
    if ( is_singular('my-post-type') ){
        //Your code here
    }
}
add_action('wp_footer','my_footer_code');