$objectManager = MagentoFrameworkAppObjectManager::getInstance();
$this->_orderCollectionFactory = $objectManager->create('MagentoSalesModelResourceModelOrderCollectionFactory');

$this->orders = $this->_orderCollectionFactory->create()->addFieldToSelect(
            '*'
        )->addFieldToFilter(
            'customer_id',
            $customerId
        )->setOrder(
            'created_at',
            'desc'
        );