Artem Kirsov

$posts = get_posts( array(
					'numberposts' 	=> -1,
					'post_type'  	=> 'order-item',
                    'meta_query'    =>  array(
                        'relation'  =>  'AND',
                        'order_status'  =>  array(
                            'key'       => 'order_status',
                            'value'     =>  array(1,2,3,4,5),
                        ),
                        'order_date_end'    => array(
                            'key'       => 'order_date_end',
                            'compare'   =>  'EXISTS',
                        )
                    ),
                    'orderby'   =>  array(
                        'order_status' =>   "ASC",
                        'order_date_end' =>   "DESC",
                    ),
				) );